Public records show that a man bearing the same name worked as an environmental health specialist for San Bernardino County, where the shooting took place.
At least 14 dead in shooting at California disabled center
The Los Angeles Times said that two law enforcement sources had given the suspect's name as Syed Farook.
A man carrying the same name is listed as residing at an apartment complex where the suspects of Wednesday's shooting were tracked by police.
Wednesday's attack took place during a holiday party being held at Inland Regional Center in San Bernardino, a huge facility that provides services to people with disabilities.
Authorities said they were looking at reports the attack might be linked to a disgruntled employee.
San Bernardino police chief Jarrod Burguan said he was informed that someone left the event following a dispute prior to the shooting.
"Somebody did leave, but we have no idea if that is the person that came back."
Shooting at US family planning center, several wounded: police
The shooting triggered a massive manhunt that ended hours later with police shooting dead two suspects, a man and a woman.
NBC News said another of the suspects was believed to be Farook's brother.
The identity of the woman was unknown.
Obama calls for bipartisan effort to address shootings
US President Barack Obama on Wednesday called for a bipartisan effort "at every level of government" to address mass shootings, such as the one that injured as many as 20 people in San Bernardino, California.
"We don't yet know what the motives of the shooters are, but what we do know is there are steps we can take to make Americans safer and that we should come together in a bipartisan basis at every level of government to make these rare as opposed to normal," he told CBS News.
"We should never think that this is something that just happens in the ordinary course of events, because it doesn't happen with the same frequency in other countries," he said.
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