Two District men were found guilty of murder in the death of a man during a home invasion in December 2008, authorities said Monday.

Allen Butler, 33, and Steven Lewis, 30, were convicted by jury Monday of second-degree murder while armed, assault with intent to kill while armed, and other charges, U.S. Attorney Ronald C. Machen Jr. said.

Tawanda Sheffield, 33, of D.C, was found guilty of lying to the police and grand jury in an attempt to provide an alibi for Butler at the time of the invasion, prosecutors said.

Around 8 a.m. on Dec. 11, 2008, a District Police officer found Franklin Johnson, 37, dead on the floor of his residence on Kenyon Street NW. A five-year-old boy was shot in the abdomen, according to authorities.

Two masked, armed men dressed in black broke into the home and shot at Johnson multiple times when he and a female friend resisted and wounded the boy in the process, according to prosecutors. Johnson's blood was found on Butler's pants, prosecutors said.

All three will be sentenced Sept. 9.