The FBI says it's received more than 100,000 images and videos sent to its website, trying to find people responsible for the riot at the U.S. Capitol. U.S. Capitol Police Officer Brian Sicknick, who grew up in South River, was one of five people who died, according to the Justice Department.

Sicknick was reportedly beaten during the riot, and later collapsed after returning to his office. Agents are looking for who's responsible for his death, and it's a case they definitely want to solve.

Sicknick was a graduate of Middlesex County Vocational and Technical School in East Brunswick. He also served in the New Jersey Air National Guard.

"When something happens in South River, whether you are a past resident or a current resident, it hits home," says Matt Lonczak, a friend of the Sicknick family.

In South River, the community held a flag lowering ceremony in his memory. Friends and famly were there, as well as Sen. Bob Menendez.

Sen. Menendez says he will do everything possible to make sure the people responsible for Sicknick's death are brought to justice. The U.S. Attorney's office will do the same.

"It cuts us to the core that one of our law enforcement brethren passed away,” says Acting U.S. Attorney Michael Sherwin, District of Columbia. “It's an ongoing investigation. There's a lot of tools and interviews that we're still conducting. There's a whole host of video out there. We're reviewing all of that information."

At least 20 people have been charged in Washington, D.C.'s federal district court, and another 40 have been charged in the local superior court since the siege on the U.S. Capitol, the Justice Department says.