"He was never weird toward me. He never gave me any weird vibes," said 17-year-old neighbor Josh Pagan, adding that in the 10 years he has lived across the street from the Ciancia family, "they've been nothing but nice to us."
The suspect's father has been involved with Pennsville's Fraternal Order of Police, said Pagan's father, Orlando, a lieutenant in nearby Penns Grove. He didn't provide details on his involvement.
The suspect graduated in 2008 from Salesianum School, an all-boys Roman Catholic school in Wilmington, the school said.
Outside the father's home Friday in Pennsville, a police cruiser blocked the long driveway. Phone calls weren't answered, and efforts to reach siblings were also unsuccessful.
After getting the call from Ciancia's father, Chief Cummings reached out to Los Angeles police, who sent a patrol car to Ciancia's apartment, Cummings said. It wasn't clear whether the police visited before, during or after the airport shooting.
"Basically, there were two roommates there," Cummings said. "They said, 'We saw him yesterday and he was fine.'"
He told Ciancia's father that because of his son's age, he couldn't take a missing persons report.