CHICAGO (STMW) — A teenage boy and a man were found dead with gunshot wounds inside a West Lawn neighborhood home Wednesday afternoon in a possible murder-suicide on the Southwest Side, police said.

The bodies were discovered about 4:15 p.m. inside a home in the 4100 block of West 63rd Street, police said.

READ MORE: Chicagoan David Kronfeld Shares Advice To Career Success In New Book

The 17-year-old boy and the 28-year-old man were both shot and pronounced dead at the scene, police said.

The teen was identified as Peter Robert Costello and the man was identified as Matthew Santon, the Cook County medical examiner’s office said. They both lived in the block where they were found.

READ MORE: Man Charged After Wounding Another Man In Parking Lot of Restaurant In Niles

Both of the bodies were found in the same bedroom of the home, and a gun and a knife were recovered nearby, according to a police source.

A police source said the deaths may stem from a murder-suicide.

MORE NEWS: At Least 24 People Wounded, 1 Killed In Weekend Shootings In Chicago

(Source: Sun-Times Media Wire © Chicago Sun-Times 2014. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)