Funeral services were held Wednesday for an LAPD officer killed by a roadside bomb while serving in Afghanistan.

Mourners and fellow officers gathered at Cathedral of Our Lady of the Angels in downtown Los Angeles for a mass honoring 28-year-old Marine Staff Sgt. Joshua J. Cullins, of Simi Valley.

The mass was followed by a funeral procession to a private burial site in Westlake Village.

Cullins, a reservist, was an explosive ordinance disposal officer and died Oct. 18th from injuries caused by a bomb that detonated as his unit investigated an earlier explosion.

He had recently recovered from a concussion he suffered in July while dismantling another bomb. In August, police officers created a get-well video to encourage him in his recovery and cheer him up.

Cullins' body was returned to Los Angeles last Thursday.

His fellow LAPD officers were heartbroken at the news of his death.

"We were all sad. We actually had a psychologist that was inside the roll call room in case any of us had any issues, which all of us did," LAPD Officer Erik Solter told KTLA.

"It's just a hard hit. It's a big loss to everybody," said LAPD Officer Robert Bean.

Cullins joined the Marines immediately after graduating from high school in June 2000. He had served initially on an active-duty basis until August 2007 and then became a reservist in August 2008.

He had served two tours of duty in Iraq and was currently serving his second tour of duty as an explosive ordnance disposal technician with the First Marine Logistics Group, First Explosive Ordnance Disposal Company, 2nd Battalion, and 9th Marine Regiment in Marja in Afghanistan's treacherous Helmand province.

Cullins had been decorated with several combat medals and awards for his service in both Iraq and Afghanistan. He had only two days left in the field before a replacement would have relieved him.

Cullins joined the LAPD in 2007. Upon graduation from the Police Academy, he was first assigned to patrol duties in the Department's Topanga Area and was currently serving at Central Area. "He was very dedicated and personable," said LAPD Bomb Squad Officer Steve Hennigan, who was a close personal friend of Cullins. "He had the kind of personality that attracted people to him, and he truly excelled in the Department. He would have been a perfect fit for the Bomb Squad. We were greatly looking forward to having him onboard."

Cullins is survived by his father and step mother, as well as two younger brothers, ages 12 and 17.

Cullins is the second LAPD officer killed in Afghanistan. A bomb killed SWAT officer Robert J. Cottle along with another Marine in March.