Mira Costa High is reopening a day after a girl suspected of being responsible for an anonymous online threat against the school was found by police.
Investigators believe she is responsible for at least one of a series of anonymous threats that led to the two-day closure of the Manhattan Beach school.
Investigators interviewed her, but she was not in custody, Manhattan Beach Police Department officials said.
Her name was not released. Police said she is not a student in the Manhattan Beach Unified School District.
Mira Costa High was closed for a second day Wednesday in response to the threats made on anonymous social media website Yik Yak.
And while it reopens Thursday, students were not convinced there would be a full attendance.
"I think many people are not going to go. Some people are still not really trusting the situation," student Grace Lauson said, "So I don't think many people are going to show up, so classes might not really resume."
"In this world today, its kinda almost a scary place," concerned parent Kitty Rafferty said.
Superintendent Mike Matthews said the school would re-open with an increased police presence.
The school was closed Tuesday after a string of threats, including one that warned people at the school to "watch out."
Manhattan PD's Stephanie Martin said they would continue to investigate the threats, despite finding the suspect.
"We're still looking to see if there's anyone else needs to be included, needs to be held accountable or is responsible," Martin said, "Regardless if it was a serious threat in their mind, because they have a grudge or mad or whatever it was, or a joke, that doesn't matter in the eyes of the law. It doesnt matter if you never intended to carry it out, shame on you, you should have never have said it."
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The school was placed on lockdown Monday after a student discovered the message on Yik Yak, which said, "If you go to Costa you should watch out very closely at school today."
It is not the first time a threat made through Yik Yak has affected Southern California. In March, San Clemente High School in Orange County was on lockdown for four hours after a hoax bomb threat was posted through it.
