Police found explosives inside the car of suspected Trump rally shooter Thomas Matthew Crooks

• Police found explosives in Thomas Matthew Crooks' car after he shot at Donald Trump.
• The FBI has identified Crooks, who was killed by Secret Service, as the shooter.
• Authorities searched Crooks's home with a bomb squad and interviewed his family.

Police found explosives inside the vehicle of Thomas Matthew Crooks , the man suspected of trying to assassinate former President Donald Trump at a Pennsylvania rally on Saturday.

The FBI identified Crooks — who was shot dead by Secret Service agents — at the shooter. Sources familiar with the investigation told The Wall Street Journal that authorities found explosives inside the car that Cooks parked nearly the rally on Saturday.

Police dispatched several bomb technicians in the area after receiving reports of suspicious packages, according to the outlet. Authorities also found an AR-15 style semiautomatic rifle next to Crooks's body, according to The New York Times .

"Dozens" of law enforcement vehicles surrounded Crooks's residence in Bethel Park, Pennsylvania on Saturday night following the shooting, according to USA Today . Agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives and a bomb squad were at the house, according to the report.

Police searched the residence "well into the night" to clear it and secure the area and conducted interviews with Crooks's family at the home, WSJ reported.

Crooks' neighbor, Dan Maloney, told USA Today that "it's insanity that anyone would do this," adding that he at one point had planned to attend the rally.

The FBI did not immediately return Business Insider's request for comment regarding the explosives found in Crooks's vehicle