AUGUSTA – Investigators say a 53-year-old motorist killed this week in a fiery, wrong-way crash on Interstate 95 in Maine may have been agitated and confused but was not suicidal.

Jeffrey Blais was killed instantly at about 2 a.m. Monday when his northbound car collided in the southbound lanes in Augusta with a car driven by Shannon Casey, a 32-year-old nursing student from Portland. Casey remained in critical condition at a Lewiston hospital.

Trooper Jeffrey Beach says Blais, of Augusta, had struggled with lifelong mental illness and interviews with family members suggest that his condition played a central role in the accident.