JOLIET, Ill. — When he first saw Christopher Vaughn walking toward his pickup on a Channahon frontage road the morning of June 14, 2007, a Bolingbrook man first thought he was injured in a motorcycle accident.

John Speer, the first to see Vaughn following the deaths of his wife Kimberly, 34, and children Abigayle, 12, Cassandra, 11, and Blake, 8, whom Vaughn is accused of killing before shooting himself twice, testified Wednesday in court that he was taking his normal route to work in Channahon when he encountered him.

"He was limping and he was holding his arm to his chest," Speer said, noting Vaughn was walking northbound on Frontage Road, south of Bluff Road, as he headed to work on Front Street.