(La Porte County, IN) - It appears a medical condition was the cause of a two vehicle crash and death of one of the drivers in La Porte County earlier this week.

La Porte County Coroner Lynn Swanson explained that an autopsy revealed 60-year-old Charles Adams had heart disease and a prior heart attack before the Wednesday afternoon collision.

Witnesses reported he was driving erratically before hitting another westbound vehicle in the rear on U.S. 20 near 500 West. Swanson said the erratic driving was more than likely caused by Adams having another heart attack.

After the rear-end collision, police said his vehicle went into a ditch and rolled multiple times.

The autopsy reportedly revealed Adams suffered crushing head injuries, but it’s strongly believed he died from a heart attack before the collision.

“He had extensive heart disease,” Swanson said.

Adams was from Seattle, Washington. The other driver, 55-year-old Mark Burch of Porter was not injured.