A man who was shot after reportedly threatening another driver with a knife after a car crash Wednesday in Fridley has died of his injuries, according to the Anoka County sheriff’s office.

The man was identified Thursday as Simon Matthew Schiffler, 32, of Williston, N.D.

The sheriff’s office did not name the bystander who interceded as Schiffler reportedly attempted to assault the other driver involved in the crash. The bystander has been identified and has not been taken into custody.

There were multiple witnesses to the crash and shooting about 4:20 p.m. on Minnesota 65/Central Avenue and Medtronic Parkway, according to the sheriff’s office. Witnesses described Schiffler as acting “extremely erratically” after the crash. He was reported to have physically pinned one driver to a passerby’s vehicle and attempted to kiss a female involved in the crash.

He then presented a knife and attempted to assault another driver, stabbing at the windows of the vehicle. A person not involved in the crash stopped to intervene, and Schiffler turned his attention to the individual, according to the sheriff’s office.