The identity of the driver accused of speeding and running a red light in Colorado on Thursday and then smashing into another car -- and killing that driver -- has been released.

Aurora Police Sgt. Aaron Bunch is accused of exchanging child exploitation material online, leading to unpaid leave and an FBI investigation.

As of 3 p.m., the intersection of Iliff Avenue and Blackhawk Street was closed to all traffic for the crash cleanup and investigation, Aurora police said.

A driver is dead and two people are in custody while being treated at a hospital after a crash that shut down all lanes of Blackhawk Street and Iliff Avenue in Aurora.

Phan and the passenger in his car were taken to a local hospital for treatment of minor injuries. Phan was later arrested and booked into the Aurora Municipal Detention Center. Phan is being held on suspicion of vehicular homicide and vehicular eluding, police said.

Algorithmic matches would not serve as probable cause for arrest. Instead, they would act as leads requiring corroboration through traditional detective work.

A police sergeant was arrested after being accused of having child sexual abuse material, Colorado officials said. Sergeant Aaron Bunch of the Aurora Police Department was arrested by the FBI’s Child Exploitation Task Force on charges related to online child sexual abuse material, according to an Oct. 8 Facebook post by police .

Family and friends gathered Saturday at New Nation Church in Aurora to remember a 37-year-old man who was shot and killed by Aurora police in August.

APD said Sergeant Aaron Bunch was immediately placed on unpaid administrative leave. According to the department, the charges involve the exchange of child exploitation material via the internet.