(NewsNation) — The father of Serenity Baker, a Texas middle schooler fatally stabbed by another student in March, has sued both the school district and a technology company for failing to prevent his daughter's death.

On March 10, an unnamed student stabbed 14-year-old Baker in the neck on campus at Roy J. Smith Middle School in Killeen, Texas, according to court documents obtained by local media. She bled out in the school hallway before any school staff or security arrived.

Her father, Thadius Baker, has filed lawsuits against the Killeen Independent School District and Evolv Technologies, the company behind the school's weapons detection system.

The lawsuit alleges the school district had prior knowledge of bullying involving the suspect, as well as documented "lax security, inconsis

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