The family of Capitol Police officer Billy Evans, killed in last Friday's attack, said Tuesday his death "left a gaping void in our lives that will never be filled."

"The absolute most important thing in his life were his two children, Logan and Abigail,” his family said in a statement, accompanied by a photo of Evans with his children, that Capitol Police released on Twitter.

"His most cherished moments were those spent with them – building with Lego, having light saber duels, playing boardgames, doing arts and crafts and recently finishing the Harry Potter series. He was always so eager to show how proud he was of everything they did. Any opportunity to spend time with his children brightened both their lives and his. Their dad was their hero long before the tragic events of last week," their statement said.