Organizers called Thursday night's gathering "In the Spirit of Ryan" to pay homage to a young officer who lost his life in the line of duty.
Bonaminio was just 27 years old, on the force for four years, and an Iraq War veteran serving two terms. Friends say he was dedicated to protecting and serving his community. Bonaminio was gunned down in a struggle with an alleged big-rig thief Sunday.
Investigators say the suspect, 44-year-old Earl Ellis Green, ambushed Bonaminio as he ran into a park after Green, possibly using the officer's own gun to kill him.
Thursday night those who have gathered for the vigil are honoring his service overseas and right here at home.
"Well what will be seen tonight is a demonstration of that love and that honor to a life that was well lived, even if he was only 27," said organizer Mary Figueroa.
Many of those that came out never met Officer Bonaminio, but they said they felt they had to come out and show their respects to the family and the police department.
Bonaminio is expected to be laid to rest on Tuesday in Riverside, his home town.
Although there has been an arrest in the case, anyone with information is still urged to call the Riverside Police Department at (951) 353-7915.
Funeral services for Bonaminio are scheduled for Tuesday, Nov. 16, at Grove Community Church in Riverside at 10 a.m. Bonaminio will be interred later at Riverside National Cemetery.
A memorial fund has been set up for Bonaminio:
Riverside Police Officers Association
In care of: Ryan Bonaminio
1965 Chicago Ave, #B
Riverside, CA 92507