According to one former FBI profiler, the mass shooting that left 14 people dead in San Bernardino, Calif., appears less like a case of workplace violence, than a carefully planned attack.

Wednesday’s shooting at a social services centre for the disabled involved a “tremendous amount of planning” and a “very distinct exit plan,” Mary Ellen O’Toole told ۴ý Channel Thursday.

San Bernardino police have identified the shooters as Syed Rizwan Farook, 28, and his wife or fiancee Tashfeen Malik, 27. The couple fled the scene, but were later killed in a shootout with police

The FBI is still investigating possible motives for the shooting, including workplace violence and terrorism. The shooters targeted an employee banquet hosted by county health officials. Farook, who worked as a restaurant inspector, was at the event before the shooting, authorities said.

But O’Toole said she does not believe reports that a workplace fight or disagreement may have caused Farook to “snap” and return to the banquet with Malik and guns.

The information released by authorities so far suggests that the case is “moving further and further away from workplace violence,” she said.

that there may have been "mixed motives" behind the shooting.

"It is possible that this was terrorist-related, but we don't know. It's also possible this was workplace-related," Obama said after meeting with national security advisers.

“The entire crime is extremely callous and it’s very cold-blooded,” O’Toole said. She believes that the couple “wanted to leave that crime scene” and cause more damage elsewhere.

It sounds like the shooters were “cool, calm and collected,” which suggests they had “psychopathic personalities,” without empathy or compassion, O’Toole said.

San Bernardino Police Chief Jarrod Burguan said Wednesday that the shooters “came prepared to do what they did, as if they were on a mission.”

With files from The Associated Press