Mark Orviss, 36, was fatally shot on June 22, 2008, in Oakland, California. He died alongside his brother, Percy Brown, 52, in a double homicide that took place during a period of intense violence in the city, especially concentrated in East and West Oakland.

The shooting occurred amid broader challenges for Oakland law enforcement: high homicide totals (125 in 2008), low clearance rates, limited witness cooperation, and interruptions to violence-reduction efforts such as Ceasefire. Funding gaps, policy conflicts, and frequent changes in the police force are cited as factors that weakened sustained prevention and investigation strategies, leaving many cases, including this one, unsolved.

Anyone with information about the June 22, 2008 shootings or who knew Mark Orviss or Percy Brown is asked to come forward with what they remember.