Luke Walker is the chief for the San Andreas Emergency Medical Services.
On May 4, 2018, Luke accidentally fell off the ski lift at the top of Mount Chiliad. Gunnar Mason rescued him and then air transported him to Crusade Medical where doctors tried to get him breathing by himself. Luke sustained severe trauma from the accident but made a full recovery and is back on duty. As of January 16, 2019, Luke was promoted to Deputy Chief.
On February 17th 2020, Luke was riding his motorbike when Officer Ryan Castle failed to slow down and clear an intersection crashing into Luke and sending him flying into the Pavement Face first. Luke was rushed to Pillbox Hill Medical Center in critical condition and placed into a medically induced coma.
On February 21st 2020, after visits from many friends Luke started showing signs of life and started to breath unassisted and showed some signs of movement.