MIAMI (AP) — Authorities are asking for the public's help after a 40-year-old man was found dead inside his car on a Miami expressway.

Miami-Dade police said in a news release that Keith Rolle was found covered in blood inside his vehicle on the Dolphin Expressway after a minor single-car crash around midnight on April 7.

He was taken to a trauma center where he was declared dead.

The medical examiner's office conducted an autopsy and found he died from a gunshot wound.

Now police want to talk to anyone who was traveling on the eastbound lanes of the expressway that night to see if they noticed any suspicious activity.