Around 7:55 a.m., an officer spotted a stalled vehicle with a flat tire in the median on eastbound Interstate Highway 580 near the 98th Avenue exit, according to CHP Officer Adib Zeid.
After approaching the driver in the vehicle, the officer determined that he was unresponsive. Initially he thought the man was asleep, but when he did not detect a pulse, he called for medical help, Zeid said. Medical personnel arrived and declared the man deceased.
Investigators are determining his cause of death, but there does not appear to be any foul play, according to Zeid, with no signs of trauma, crash damage or criminal activity.