(CNN) -- Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old Sandra Cantu, will face additional charges that she tried to poison two people, including another 7-year-old girl. 

Melissa Huckaby is charged with killing Sandra Cantu and attempted poisoning of second child. 

A revised complaint against Huckaby, 28, of Tracy, California, was made public just hours before she was due back in court on Friday. 

The new charges caused another delay in the murder case, CNN afiliate KRON reported. 

The complaint charged that Huckaby "did willfully and unlawfully mingle a harmful substance with food or drink" with the intent to harm the child, identified only as "Jane M. Doe." 

Another alleged poisoning victim was identified as Daniel Plowman, but no age or other information was immediately provided. 

The latest charges also include one count of child abuse endangerment relating to the unidentified child, who was allegedly in Huckaby's "care and custody." Read the complaint (PDF) 

Huckaby did not enter a plea in the Cantu slaying in her first two court appearances last month. 

At an earlier hearing, Judge Linda L. Loftis agreed to keep the autopsy and toxicology reports under seal, citing a "great danger of public outrage." 

If convicted on the murder, rape and kidnapping charges, Huckaby, could face the death penalty or life in prison without parole, authorities said. 

CNN's Alan Duke and Jim Roope contributed to this report 


How old is Huckaby?
What state is she from?
What city?
On what day was she to appear in court?
By what name was the child called?
Did Huckaby enter a plea in her first court appearance?
When did this court appearance happen?
What sentence might she face?
Or?
Without parole?
What news outlet was responsible for this report?
How many reporters were classified as contributers?
And their names?
What was Huckaby's profession?
How old was the girl involved in the crime?
What was her name?
Was there another child involved?
How old was she?
What did Huckaby charged with doing to the second child?
What was allegedly done to Daniel Plowman?
28
 Huckaby, 28, of Tracy, California, 
California
Huckaby, 28, of Tracy, California
Tracy
 Huckaby, 28, of Tracy, California
Friday
Huckaby, 28, of Tracy, California, was made public just hours before she was due back in court on Friday.
Jane M. Doe
The complaint charged that Huckaby "did willfully and unlawfully mingle a harmful substance with food or drink" with the intent to harm the child, identified only as "Jane M. Doe." 
No
Huckaby did not enter a plea in the Cantu slaying in her first two court appearances last month. 
Last month
Huckaby did not enter a plea in the Cantu slaying in her first two court appearances last month. 
Death penalty
f convicted on the murder, rape and kidnapping charges, Huckaby, could face the death penalty or life in prison without parole, authorities said. 
Life in prison
If convicted on the murder, rape and kidnapping charges, Huckaby, could face the death penalty or life in prison without parole, authorities said. 
Yes
If convicted on the murder, rape and kidnapping charges, Huckaby, could face the death penalty or life in prison without parole, authorities said. 
CNN
CNN's Alan Duke and Jim Roope contributed to this report 
Two
CNN's Alan Duke and Jim Roope contributed to this report 
Alan Duke and Jim Roope
CNN's Alan Duke and Jim Roope contributed to this report 
Sunday school teacher
Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old
Eight
Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old Sandra Cantu
Sandra Cantu
Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old Sandra Cantu
Yes
Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old Sandra Cantu, will face additional charges that she tried to poison two people, including another 7-year-old girl. 
Seven
Melissa Huckaby, the former Sunday school teacher accused of kidnapping, raping and killing 8-year-old Sandra Cantu, will face additional charges that she tried to poison two people, including another 7-year-old girl. 
Attempted poisoning
Melissa Huckaby is charged with killing Sandra Cantu and attempted poisoning of second child.
Poisoning
nother alleged poisoning victim was identified as Daniel Plowman, but no age or other information was immediately provided.