The Tarrant County District Attorney's office said Wednesday the blog contained many disturbing descriptions of violence, but "it does not meet the legal requirements for a charge."
Parents protested outside Tidwell Middle School in Roanoke last week over the district's decision not to punish the eighth grade author. The story named specific students at the campus.
Northwest ISD said it needed law enforcement to decide if the story was a matter of free speech or a crime and asked the D.A. to weigh in.
The district attorney's office's decision not to indict the student also isn't sitting well with many parents.
"When you specifically name people, maybe not a time and place, but specifically naming people and how you are going to kill them, to me, is a threat," said Corina Bailey, a concerned parent. "Whether you say when you're going to do it, it doesn't matter."
The blog was written sometime last fall and posted online during a brief period while the eighth grader was sent to a private school. He re-enrolled at Tidwell in January.
In one of the few sections that's not too graphic, the student writes, "She twists and turns, but I manage to hit her in the head, giving me an opening."
In another section, he goes on a killing spree with his scissors. "He tries to hold in a scream, but it escapes him when I drive the scissors down his chest," the blog says.
The school district has allowed the boy to come back to school. Bailey says they're now taking it to the next level.
"We have many parents sending emergency petitions into the TEA so that hopefully, we can go beyond the school board, step past that point and go directly to the TEA," said Bailey.
Northwest ISD released a statement echoing the one released by the DA's office, and the TEA confirms there have been several complaints filed against Tidwell Middle School that they are investigating.
"At this point, I think it's just not comfortable for anybody; him or the other students," said Bailey.
The boy's father told FOX 4 last month by phone his son is a good student who's been the target of bullying -- an allegation the district says it's investigating.
The boy's father told FOX 4 via phone on Wednesday that he didn't want to comment on the D.A.'s decision, saying his son has been through enough and that he didn't want to prolong the story further.