Alvin Andrew Kelly was born on March 14, 1951, in Culberson County, Texas. He worked as a debt collector for Walter "WW" Shannon, a known drug trafficker based in Kilgore, Texas. Kelly had a criminal history that included convictions for burglary and drug-related offenses.​

In late April 1984, Kelly, along with his brother Steven and associate Ronnie Lee Wilson, visited the home of Jerry and Brenda Morgan, both reserve marshals in Longview, Texas. An argument ensued between Kelly and Jerry Morgan, during which Kelly threatened Jerry's life. On April 30, 1984, Kelly returned to the Morgans' home with Wilson and his wife, Cynthia. Kelly shot and killed Jerry, Brenda, and their 22-month-old son, Devin, in their mobile home.​Wikipedia+1Texas Executions+1

On June 4, 1984, Kelly murdered his roommate, John Eugene Ford, shooting him multiple times and leaving his body near Lake Cherokee, Texas.​

Kelly was arrested on March 31, 1990, and charged with the murders. During his trial, testimonies from his ex-wife Cynthia, his brother Steven, and other witnesses implicated him in the killings. On October 25, 1991, Kelly was found guilty of capital murder for the death of Devin Morgan and subsequently sentenced to death.​

After exhausting all appeals, Kelly was executed by lethal injection on October 14, 2008, at the Huntsville Unit in Huntsville, Texas.​