PENNSVILLE - The FBI has identified the suspect in yesterday's deadly shooting at Los Angeles International Airport as a 23-year-old New Jersey native.

Suspect Paul Ciancia is originally from Pennsville, across the river from Wilmington, Delaware. New Jersey police say Ciancia's brother received a text from him Friday afternoon, with references to taking his own life. Concerned, Ciancia's father called police, who then contacted Los Angeles police. By then, the shooting had already occured.

Ciancia allegedly opened fire at a security checkpoint at LAX Friday morning, killing a TSA agent and wounding two others. The TSA agent killed has been identified as 39-year-old Gerardo Hernandez, the first TSA agent in its history killed in the line of duty.

The FBI says it's looking into Ciancia's background. According to New Jersey police, Ciancia had sent a series of "angry, rambling" texts to his brother and father recently, complaining about the government.

Pennsville's police chief says his department has never had any dealings with Ciancia and described the Ciancias as a good family.