According to a neighbor, Sepehri had attended a party nearby where alcohol was present the night before.
Police say he was last seen around 11:30 Saturday night.
Sepehri is the second student from Walt Whitman High School to pass away in as many weeks.
“That hit us pretty hard and so it’s just also adding more. And, my principal wasn’t able to come to school today. He usually says a speech at the beginning, but he had the teachers say them because, it’s just too much.”, said Whitman Freshman, Margot Rojas.
In a letter to the community, Whitman High School Principal, Alan Goodwin expressed heartfelt sympathy to Sepehri’s family and said initial findings suggest that his death may have been an accident.
He’s calling on students celebrate Sepehri’s love for art and commitment to others and to support each other during this difficult time.
“We’re just going to miss him a lot and we just weren’t expecting this at all. And i think we’re really going to learn a lesson from this because he was an amazing person and everyone knew that.”, said
Grief counselors were on staff Monday to help students and faculty deal with the loss.
One parent did comment that underage drinking has been a huge problem in the area.
Reports also show that principal Goodwin even sent an email to parents back in 2015 urging them not to host drinking parties for their kids.