New details released in teen’s terroristic threat to attack AISD school [Video]

AUSTIN, Texas – Court paperwork reveals more information about a teenager’s plan to shoot up an elementary school.

Giana Castillo, 17, is charged with terroristic threat. She’s accused of planning an attack on Graham Elementary, which she previously attended.

Yaremy Lopez, a Graham Elementary parent, shared her reaction.

“I grew up in this school and I would never expect it to happen in my childhood school,” she said. “I’m very unhappy with it, I don’t feel safe.”

Authorities say a tipster saw Castillo’s post on Instagram about planning an active shooter event and idolizing past shooters. Investigators traced the IP address.

The arrest affidavit shows posts of weapons she wanted to buy, plus images on her phone that say she “always had a sort of hatred for humanity.”

The paperwork also showed conversations with another person planning how to get weapons and when to carry out the attack.

RELATED: Teen charged with terroristic threat for allegedly making ‘concerning’ Instagram posts

…