A man who took part in the robbery and fatal shooting of three service station attendants was executed by in-jection Friday.

Sammy Roberts, 40, was condemned for his part in the deaths of Bill Spain, Kenneth Krause and Louis Cakley.They were all robbed then driven to wooded areas where they were shot to death June 19, 1980. The bodies were found three days later.

Roberts, Wesley Copeland and Danny Ray Coker were arrested later that year.