WARREN, Ohio (WKBN) — Police are treating the investigation into the death of a teenager in the Warren arson Thursday morning as a homicide, according to Warren Police Detective Michael Altiere.

“A lot of information is coming in and we’re trying to track down each lead,” Altiere said.

Detectives are actively working on 16-year-old Chassidy Broadstone’s case. They say they believe more than one person was involved in the fire on Nevada Avenue that took Broadstone’s life and sent her two older sisters to different hospitals.

Friday afternoon, Altiere released pictures showing what he says is one of the suspects and the vehicle they came and left in.

Investigators want to know who that person is and any association with the vehicle.

“When anybody sees these photographs, if they want to go back, check their video footage, see if they can, you know, get a better idea if they’ve seen it before, just give us a call,” Altiere said.

Altiere says investigators have received a lot of cooperation, specifically from the neighborhood.

“We’re getting a lot back from the community and we’re thankful that, you know, how engaged and how helpful they’ve been just within the past 24 hours,” Altiere said.

Broadstone, a Warren G. Harding junior, excelled in math. School officials say she always helped other students better understand the content they struggled with.

Grief counseling is available for those students and staff.

“We are going to try to do everything we can to make sure that we keep her memory alive so that the students have a way of coping and dealing with it and going through the grieving process,” said Principal Sandra Williams.

The school plans to honor her memory on Thursday by wearing her favorite color, green.

“We will do a little talk about Chassidy and then after that, we will walk the building in her memory and in her honor,” Williams said.

The Trumbull County Coroner’s Office said Broadstone’s cause of death is pending.

Anyone with information is asked to give Altiere a call at 330-841-2749.