On December 18, 2024, Seattle Metro bus driver Shawn Yim was tragically killed during a violent confrontation with passenger Richard Sitzlack, who has been charged with first-degree murder. The altercation began over a disagreement about an open bus window, which escalated when Sitzlack pepper-sprayed, kicked, and ultimately stabbed Yim multiple times. Yim managed to call 911 during the attack, pleading for help. Following a thorough investigation and a two-day manhunt, police arrested Sitzlack after a Metro driver recognized him. The prosecuting attorney has highlighted Sitzlack's prior violent behavior, including a previous incident where he killed a roommate but was not charged due to self-defense claims.

Sitzlack is currently held in King County Jail with bail set at $5 million. If convicted, he faces a maximum sentence of 32 years in prison. This incident raises serious concerns about the safety of public transit workers and has sparked renewed discussions about protective measures.