Two Granite City teenagers are accused of killing a homeless man for his can of beer.

Madison County prosecutors charged 17-year-old Joseph Raines and 18-year-old Brandon Bouck yesterday with first-degree murder and robbery.

The body of 58-year-old Thomas Muffler was found last Friday after he collapsed in a Granite City driveway.

Police say the teens had asked Muffler to buy alcohol for them, but Muffler refused because they were minors. Authorities allege the suspects later met up with Muffler again, beat him and robbed him of the can of beer he was carrying.

Police Chief Rich Miller says an autopsy shows Muffler died of internal injuries.