On August 8, 2023, at about 1:11 a.m., Pasadena police responded to reports of a fight with gunfire at an apartment complex in the 2000 block of North Fair Oaks Avenue. Officers found 34-year-old resident Tynisha Houston with gunshot wounds; she was taken to a local hospital by Pasadena Fire Department paramedics and later died from her injuries.

Investigators say Houston and her neighbor, 54-year-old Pasadena resident Mark Anthony Levels, argued in a common area over a tenant dispute. The disagreement reportedly escalated into a physical altercation during which Levels allegedly shot Houston. Patrol officers later located and detained Levels inside the same complex; he had sustained injuries in the incident and was taken to a hospital. Detectives searched his residence and recovered a firearm believed to be the murder weapon. On August 10, 2023, the Los Angeles County District Attorney charged Levels with murder under California Penal Code 187(a) and set bail at $3.1 million.

Anyone who witnessed the fight or has information about what happened that night is asked to contact the Pasadena Police Department.