The 28-year-old man was killed less than 24 hours before he was scheduled to testify in a Detroit freeway shooting case.
Willie Wimberly was facing charges related to the death of Brandon Charles, who was set to testify against him back in January in a separate freeway shooting case.
The truck fled as the victims lost control of their car and ended up on the shoulder of I-96.
The man who allegedly fired shots at motorists along US-23 near Ann Arbor last winter is expected to face at least seven years in prison under a plea deal.
Police said the suspects followed the victims onto the freeway, pulled alongside their vehicle and opened fire.
A woman is in Detroit Receiving Hospital Tuesday evening, following a shooting along I-75 at Livernois in Detroit.
The shootings were reported Monday evening in Washtenaw County within 15 minutes of each other.
A man who authorities say fired shots at motorists along a highway near Ann Arbor is due back in court in April after being ordered to undergo a competency evaluation.
Raulie Casteel waived his right to a hearing Friday to determine if prosecutors have enough evidence in the Oakland County case.
A man accused of firing shots at motorists along a highway near Ann Arbor has been charged with attempted murder.