For several hours police surrounded an apartment building, believing a second suspect was barricaded inside. Finally forcing their way into the apartment, SWAT officers found no one.
But they did find a rambling, semi-coherent suicide note apparently written by White.
The motive for the shooting at the El Cajon fast-food restaurant parking lot is unknown, Collins said. The victim is expected to survive, according to a homicide official with the San Diego County Sheriff's Department.
At the Sunday news conference announcing Henwood's death, Councilman Todd Gloria, who represents City Heights, spoke of "a senseless, tragic loss of this hero."
Mayor Jerry Sanders, a former police chief, said later that Henwood's death "is another grim reminder that our police officers put their lives on the line every day to protect our community."
Henwood's name will be added to a monument in front of police headquarters that lists 31 officers killed in the line of duty since 1913.