(CNN) -- The mother of an 11-year-old boy who hanged himself after allegedly being bullied at a Georgia school says her daughter also has been a victim of taunting. 

Masika Bermudez-Carrasquillo, who Friday asked the White House for help in a campaign to end school bullying, said her daughter, 12, was also recently harassed by a boy who kept referring to her dead brother. 

The boy was disciplined but still taunted the girl before he was suspended and his mother withdrew him from a middle school, she said. 

Since then, the boy's mom has failed to meet with her, Bermudez said. "I guess she doesn't care." 

The mother, who wrote a letter to President Barack Obama about bullying, held a news conference Friday to ask for help. 

Jaheem Herrera was found dead in his closet in April. 

"Til this day, I live with that memory of seeing my son hanging in the closet; my daughters are so hurt too," Bermudez wrote in the letter. 

Bermudez told CNN that Jaheem, a fifth-grader, had been complaining about bullying at Dunaire Elementary School in DeKalb County. Bermudez said that at the time, she did not know that the bullying had gotten so bad. Friday, she indicated Jaheem once passed out after boys put him in a sleeper hold at the school. 

Administrators and others won't take responsibility for this and other incidents at the school, she said. 

"I feel like I failed him," Bermudez said of Jaheem. "I can't get justice. A year has passed, and they keep denying it." 
When was Jaheem found dead?
How old was he?
What grade?
Where did he go to school?
What sort of bullying did he suffer?
How long ago did this happen?
Is the mother attempting to get the government involved?
Did school faculty admit fault?
What is the mother's name?
Does she have other offspring?
What's her name?
What happened to her?
By whom?
in April
Jaheem Herrera was found dead in his closet in April.
11
The mother of an 11-year-old boy
fifth
Jaheem, a fifth-grader
Dunaire Elementary School
complaining about bullying at Dunaire Elementary School in DeKalb County
boys put him in a sleeper hold
boys put him in a sleeper hold at the school. 
A year ago
 A year has passed
yes
Masika Bermudez-Carrasquillo, who Friday asked the White House
no
"I can't get justice. A year has passed, and they keep denying it." 
Masika Bermudez-Carrasquillo
Masika Bermudez-Carrasquillo, who Friday asked the White House for help in a campaign to end school bullying, said her daughter
yes
says her daughter
unknown
unknown
she was taunted
 daughter also has been a victim of taunting
a boy
recently harassed by a boy who kept referring to her dead brother. 