55-year-old man gunned down riding bike

A 55-year-old man was gunned down riding his bike on Detroit's west side.

Witnesses say the two shooters then took off, leaving the man to die in the street.

An early-morning shooting on Detroit's west side at Fenkell and Tuller near Livernois left shell casings, blood and a bicycle - and took a life.

"The victim was in the area, the vehicle pulled up with two occupants inside," said Sgt. Cassandra Lewis, Detroit police. "One of those occupants produced a firearm and started firing shots. The victim was fatally injured."    

The shooting happened in an area of the city many say is known for prostitution, although no connection is being made at this time. 

Detroit police are on the lookout for two man that fled the scene in a black sport utility vehicle. 

Anyone with information should call Detroit police at (313) 596-2260 or may remain anonymous by calling 1-800-SPEAK-UP.

Investigators want to know if there was a relationship between the man on his bicycle and the suspects and why was the man riding his bicycle at 5 a.m. Wednesday morning?  

Those questions still need answers.