A man is dead following a car chase that closed much of Interstate-55 in Jefferson County Monday. 31-year-old Jarrod Kershaw of Pacific, Missouri crashed his car at the I-55 and 270 interchange and carjacked another. A chase with police ensued and ended near route 61. Traffic was stopped on I-55 both directions. Police say they believe Kershaw had both homicidal and suicidal intentions. An autopsy will determine if Kershaw died from police fire or self-inflicted shot.