Santa Clara County Ambulance, where Boyer had worked as a paramedic since 2011, issued a statement saying, "Our hearts are heavy with emotion and we certainly want to extend our thoughts and prayers to his family and friends as they cope with this loss."
Oakland police say the shooting is now being investigated as a homicide.
Police are still in need of any additional witnesses who could offer tips as they search for a suspect and a motive. Oakland Police Sgt. Arturo Bautista says witnesses and clues on that stretch of Keller Avenue have been few. "It was in the middle of the day and it's in an area where there is not a lot of foot traffic at all," he said.
The medics who worked with Boyer are devastated. News of their friend's death spread quickly and now a memorial has started outside the Rural/Metro Ambulance location in San Jose.
Just moments after Boyer's death, his friends and colleagues tied a black ribbon around the sign he passed every day on his way to work. The 34-year-old was a paramedic at Santa Clara County Ambulance in San Jose.
"It is a senseless crime and it's horrible to see somebody who has worked so hard to make a community better and help save people's lives. For that to go away, it's tragic," said Brian Hubbell from Santa Clara County Ambulance.
Oakland police say he had just left his father's home in Oakland after taking him to a doctor's appointment Tuesday morning. As he waited at a stop sign on Keller Avenue someone rolled up and shot him. That is when Boyer's car careened off the road and crashed into a ravine.
"Everybody loved him, everybody loved working with him, great patient care. I think those are probably some of the best qualities about him," said Hubbell.
Boyer started working as a medic in the county in 2008. He worked for AMR with Bryan Stow, who was also a paramedic. Stow was badly beaten after a Giants-Dodgers game in 2011.
"It's just two years after that, they're reeling. It's like the same emotions coming back," said Monica Gomez from Santa Clara County Ambulance.
Medics rallied and held fundraisers for Stow. Now, most don't know what to do to help Boyer's family. His friends say he got married one year ago this month.
"People are having a tough time. They're very emotional, it's been an emotional week just the circumstances of what happened," said Gomez.
Counselors have been coming to the Santa Clara County Ambulance company since Tuesday. They will be here once again to speak with staffers on Friday.
(Photo of Quinn Boyer courtesy of Angie Perez)
