On Thursday, sheriff's detectives arrested 20-year-old Jessica Andrea Gordon while serving a search warrant at her Mill Valley home. At the residence, detectives located and impounded a red Dodge Durango suspected to be involved in the shooting and Gordon was booked into the Marin County jail on suspicion of murder, according to the sheriff's office.
Then, on Saturday afternoon, detectives arrested Joseph Andrew Farnsworth, a 19-year-old El Cerrito resident, after serving a search warrant in Richmond. Farnsworth is suspected of firing the handgun used to kill William Crompton Maclean, according to the sheriff's office.
Detectives allegedly located and a 9 mm handgun while arresting Farnsworth, but it has not been determined weather the weapon was used in the shooting of Maclean.
An investigation into the shooting indicates that it was a random act of violence associated with road rage, according to the sheriff's office.
Maclean was a passenger in a Chevrolet pickup truck that was part of a Hells Angels procession on May 24 when he was shot on the highway between Tiburon Boulevard and Paradise Drive near Corte Madera. The group was returning from the funeral of a Hells Angel member in Daly City.
Raymond Foakes, Maclean's brother-in-law and president of the Sonoma County chapter of the Hells Angels, was reportedly driving the pickup and he pulled off the highway at Paradise Drive and called the California Highway Patrol.
Maclean was taken to Marin General Hospital where he was pronounced dead.
The Hells Angels are scheduled to make their annual ride, the Marin County Poker Run and BBQ, from Corte Madera around noon today.