Mid-trial, Buckley fires his attorney, Rodney Fallon (played by Giancarlo Esposito), and chooses to represent himself, changing his plea to not guilty and claiming the incident was an accident rather than a suicide attempt or intentional act of murder. Context and Real-Life Inspiration

Detectives find that the driver mingled with the victims at the scene before disappearing. The car was initially thought to be stolen, but evidence eventually points to Buckley, who was struggling with substance abuse and family issues.

This response uses data provided by Google's Knowledge Graph "Law & Order" Locomotion (TV Episode 2005) - IMDb

is the season finale of the 15th season of the original Law & Order , first aired on May 18, 2005.