said. On Friday, Ciancia burst into a roommate's room and demanded a ride to the airport immediately, said the source, who spoke to CNN on the condition of anonymity. The roommate obliged. Investigators do n't think the roommate had any idea of Ciancia's plans. The near-save Around the same time, Ciancia was sending text messages to family members in Pennsville, New Jersey. One suggested that something bad would happen. Although Ciancia has no known history of mental illness, he said in the texts that he was unhappy, and the messages were alarming enough that Ciancia's father decided to call police. I felt that it was pretty serious. It sounded as if Paul Ciancia in California was thinking about harming himself, so obviously I knew I needed to make a phone call to the LAPD, Pennsville Police Chief Allen Cummings told CNN's Jake Tapper on Monday. Cummings spoke with a lieutenant there, who told him the department was in the middle of responding to a shooting at LAX. At this point, we were n't connecting the dots, he said. They did later when a reporter called the police chief, asking him to comment on the shooting. Los Angeles Police Department Cmdr. Andy Smith says police were first called to check on Ciancia at 10:06 a.m. Officers arrived at his apartment six minutes later, according to Smith. Ciancia was already gone. The timeline provided Monday by police differed from