The family of a Benton Harbor man killed in what police describe as a hit and run crash on May 24 in Cass County is calling for a thorough investigation and planning to seek help from the FBI if it doesn’t get one. Benton Harbor activist the Reverend Edward Pinkney led a press conference and rally for the family of Timothy Johnson on Thursday outside Benton Harbor City Hall. Cass County Sheriff Clint Roach says Johnson was found dead in a ditch …