BROOKLYN - The family of a motorcyclist who may have been killed during a police chase sought the help of Brooklyn's district attorney Monday.

Dexter Walters' family members say they have many unanswered questions about his death, and want more information from investigators.

On Sept. 12, investigators initially said Walters crashed his motorcycle in Windsor Terrace when trying to pass between a van and a line of parked cars.

But several days later, two officers who responded to the scene of the accident were placed on modified duty due to concerns raised in relation to the case.

Walters' family asserts that police have surveillance video of the crash that may show the officers were pursuing Walters at the time of the crash.

They're calling for that video's public release, and possible charges against the officers.