PUBLISHED: . 07:58 EST, 20 February 2014 . | . UPDATED: . 11:33 EST, 20 February 2014 . Three teenagers - one female and two males - are to be tried as adults after allegedly luring a 16-year-old boy into a shed, shooting him with a BB gun, attacking him with a crow bar and carving a swastika into his forehead with a box cutter. Jenna Jean Montgomery, 15, Blue Christian Kalmbach, 15, and Jess Taylor, 17, pleaded not guilty to attacking 16-year-old Dustyn Murrain and were each held on a $3 million bail bond at a court hearing yesterday. A fourth suspect, an unnamed 14-year-old male, who is also accused of taking part in the assault on the schoolboy, will be tried as a juvenile on less serious charges. Scroll down for video . Tried as an adult: Mugshot of Jenna Montgomery who is accused of luring the victim. Accused: Blue Christian James Kalmbach (left) and Jess Taylor (right) are being held on a $3 million bail bond . Police now suspect the foursome launched the gruesome attack, which took place on February 10 behind a house in Southeast Portland, in a bid to steal the victim's skateboard and cash. Police also suggested the victim had been perceived as a bully and the four saw the attack as retaliation. The victim, told police he was lured to the shed by Miss Montgomery, a fellow David Douglas High School student, who he had met earlier in the day. Murrain said he was invited to meet the girl at Southeast 122nd Avenue and Powell Boulevard, according to prosecutor Christopher Ramras. Jenna Montgomery allegedly told police that she and the three other accused concocted the plan the night before the attack and agreed that she would be 'the bait' Scene: The shed where the violent assault occurred, which is behind a house in southeast Portland. Four teens have been charged . Police have said they are struggling to determine a motive for why the teens allegedly lured Dustin Murrain to this shed and brutally attacked him . When he did, she then walked him to a nearby home and he followed her into the shed in the backyard. There, he was confronted by three other boys. According to Murrain's account, he was struck in the back of the head with a silver crowbar once he entered the shed. He also was ordered to take off his shirt. Once . Murrain removed his shirt, one of the teens, identified as Blue . Christian Kalmbach, 15, is accused of shooting Murrain in the chest, the . groin and index finger with a BB gun. Kalmbach . is then accused of using a box cutter to carve a 'swastika-shaped . insignia' into Murrain's forehead, according to the court affidavit. When Murrain questioned what his attackers wanted, they demanded he return with a skateboard and money, the affidavit said. They rifled through his pockets and stole his iPod, the papers said. Murrain managed to escape and fled to a nearby auto service shop for assistance. He was taken to OHSU Hospital for treatment. Police then located the suspects at 3266 S.E. 111th Ave. Freaky: A Facebook photo of Jenna Jean Montgomery. The 15-year-old allegedly admitted to police she and three other boys had concocted the plan and that she was 'the bait' Horrific: The teens stand accused of using a boxcutter, similar to this one, to carve a swastika-like insignia into the head of Dustin Murrain . The 15-year-old girl told investigators that she and the boys had concocted the scheme the night before and that she was to be the 'bait' to lure Murrain to the shed, the affidavit said. 'She stated that they had all discussed a plan to lure him over to torture him,' the affidavit said. Kalmbach, in an interview with police detectives, admitted he had shot Murrain in the chest and groin, carved a swaskika into his forehead and had forced him to eat cat feces, the affidavit said. Montgomery, Kalmbach, Jess Taylor, 17, and the 14-year-old, were arrested last week, accused of second-degree assault, first-degree kidnapping, criminal conspiracy to commit first-degree kidnapping and first-degree robbery. The four were booked into Donald E. Long juvenile detention about 4 pm on February 10 and appeared the next day before family law Multnomah County Circuit Court Kathryn Villa-Smith in Juvenile Court. Each entered not guilty pleas to the allegations. The 14 year-old's case will remain in juvenile court, but the older teens will be prosecuted as adults for the Measure 11 offenses. Ramras said he didn't know the motive in the crime, or if Murrain knew the three boys. Murrain was rushed to OHSU Hospital for treatment after finally fleeing the shed . The shed was behind a home where the 14 year-old was living with his grandparents, Ramras said. East Precinct Capt. Dave Hendrie said the case was disturbing, even to longtime officers. 'It was shocking enough that even 20-year veterans were like, 'Wow'... that's just another level'" of violence that they're not used to seeing,' Hendrie said. A grand jury is hearing the case and is expected to return an indictment by Tuesday. The victim's mother, Kelli Murrain, told KPTV she's worried her son will never get over the incident. 'He's been severely traumatized not just physically, but emotionally,' she said. 'It's something he's gonna live with forever, especially if the scar of swastika doesn't go away. Every time he looks in the mirror he's gonna have that memory. 'I'm almost ready to lose faith in humanity at some point, you know, all of this evil is running around, and with our youth. 'It's bad enough that we have the bad guys out there, you know the adult bad guys, but these are young kids.' Sorry we are unable to accept comments for legal reasons.
Dustyn Murrain, 16, told police he met Jenna Montgomery, 15, on Feb 10 .
She allegedly lured him to shed in Southeast Portland where three other teenagers were waiting, including Blue .
Kalmbach, 15 and Jess Taylor, 17 .
Teenagers allegedly tortured Murrain with a BB gun and a crowbar, then used a box cutter to carve a swastika in his forehead .
Murrain managed to escape and get help following gruesome attack .
Group arrested and charged with kidnap, assault, robbery and menacing .
All except the fourth suspect, an unnamed 14 year-old, to be prosecuted as adults and remanded in custody with a $3 million bail bond each .
PUBLISHED: . 07:58 EST, 20 February 2014 . | . UPDATED: . 11:33 EST, 20 February 2014 . Three teenagers - one female and two males - are to be tried as adults after allegedly luring a 16-year-old boy into a shed, shooting him with a BB gun, attacking him with a crow bar and carving a swastika into his forehead with a box cutter. Jenna Jean Montgomery, 15, Blue Christian Kalmbach, 15, and Jess Taylor, 17, pleaded not guilty to attacking 16-year-old Dustyn Murrain and were each held on a $3 million bail bond at a court hearing yesterday. A fourth suspect, an unnamed 14-year-old male, who is also accused of taking part in the assault on the schoolboy, will be tried as a juvenile on less serious charges. Scroll down for video . Tried as an adult: Mugshot of Jenna Montgomery who is accused of luring the victim. Accused: Blue Christian James Kalmbach (left) and Jess Taylor (right) are being held on a $3 million bail bond . Police now suspect the foursome launched the gruesome attack, which took place on February 10 behind a house in Southeast Portland, in a bid to steal the victim's skateboard and cash. Police also suggested the victim had been perceived as a bully and the four saw the attack as retaliation. The victim, told police he was lured to the shed by Miss Montgomery, a fellow David Douglas High School student, who he had met earlier in the day. Murrain said he was invited to meet the girl at Southeast 122nd Avenue and Powell Boulevard, according to prosecutor Christopher Ramras. Jenna Montgomery allegedly told police that she and the three other accused concocted the plan the night before the attack and agreed that she would be 'the bait' Scene: The shed where the violent assault occurred, which is behind a house in southeast Portland. Four teens have been charged . Police have said they are struggling to determine a motive for why the teens allegedly lured Dustin Murrain to this shed and brutally attacked him . When he did, she then walked him to a nearby home and he followed her into the shed in the backyard. There, he was confronted by three other boys. According to Murrain's account, he was struck in the back of the head with a silver crowbar once he entered the shed. He also was ordered to take off his shirt. Once . Murrain removed his shirt, one of the teens, identified as Blue . Christian Kalmbach, 15, is accused of shooting Murrain in the chest, the . groin and index finger with a BB gun. Kalmbach . is then accused of using a box cutter to carve a 'swastika-shaped . insignia' into Murrain's forehead, according to the court affidavit. When Murrain questioned what his attackers wanted, they demanded he return with a skateboard and money, the affidavit said. They rifled through his pockets and stole his iPod, the papers said. Murrain managed to escape and fled to a nearby auto service shop for assistance. He was taken to OHSU Hospital for treatment. Police then located the suspects at 3266 S.E. 111th Ave. Freaky: A Facebook photo of Jenna Jean Montgomery. The 15-year-old allegedly admitted to police she and three other boys had concocted the plan and that she was 'the bait' Horrific: The teens stand accused of using a boxcutter, similar to this one, to carve a swastika-like insignia into the head of Dustin Murrain . The 15-year-old girl told investigators that she and the boys had concocted the scheme the night before and that she was to be the 'bait' to lure Murrain to the shed, the affidavit said. 'She stated that they had all discussed a plan to lure him over to torture him,' the affidavit said. Kalmbach, in an interview with police detectives, admitted he had shot Murrain in the chest and groin, carved a swaskika into his forehead and had forced him to eat cat feces, the affidavit said. Montgomery, Kalmbach, Jess Taylor, 17, and the 14-year-old, were arrested last week, accused of second-degree assault, first-degree kidnapping, criminal conspiracy to commit first-degree kidnapping and first-degree robbery. The four were booked into Donald E. Long juvenile detention about 4 pm on February 10 and appeared the next day before family law Multnomah County Circuit Court Kathryn Villa-Smith in Juvenile Court. Each entered not guilty pleas to the allegations. The 14 year-old's case will remain in juvenile court, but the older teens will be prosecuted as adults for the Measure 11 offenses. Ramras said he didn't know the motive in the crime, or if Murrain knew the three boys. Murrain was rushed to OHSU Hospital for treatment after finally fleeing the shed . The shed was behind a home where the 14 year-old was living with his grandparents, Ramras said. East Precinct Capt. Dave Hendrie said the case was disturbing, even to longtime officers. 'It was shocking enough that even 20-year veterans were like, 'Wow'... that's just another level'" of violence that they're not used to seeing,' Hendrie said. A grand jury is hearing the case and is expected to return an indictment by Tuesday. The victim's mother, Kelli Murrain, told KPTV she's worried her son will never get over the incident. 'He's been severely traumatized not just physically, but emotionally,' she said. 'It's something he's gonna live with forever, especially if the scar of swastika doesn't go away. Every time he looks in the mirror he's gonna have that memory. 'I'm almost ready to lose faith in humanity at some point, you know, all of this evil is running around, and with our youth. 'It's bad enough that we have the bad guys out there, you know the adult bad guys, but these are young kids.' Sorry we are unable to accept comments for legal reasons.
a swastika into his forehead with a box cutter. Jenna Jean Montgomery, 15, Blue Christian Kalmbach, 15, and Jess Taylor, 17, pleaded not and were each held on a $3 million bail bond at a court hearing yesterday. A fourth suspect, an house in Southeast Portland, in a bid to steal The victim, told police he was lured to the shed three other accused concocted the plan the night index finger with a BB gun. Kalmbach . is then accused of using a box cutter to carve a Murrain managed to escape and fled to a nearby but the older teens will be prosecuted as adults where the 14 year-old was living with his