Prosecutors say a Cleveland truck driver indicted on multiple counts of aggravated murder in the slayings of four people is a serial killer.

Robert Rembert was indicted Tuesday. Cuyahoga (ky-uh-HOH'-guh) County prosecutors say Rembert was arrested Sept. 21 at a truck stop and has been held on a $1 million bond.

Prosecutors say DNA evidence matched Rembert to the rape and strangulation deaths of Rena Mae Payne in May 1997 and Kimberly Hall this June.

Rembert also is charged with fatally shooting Morgan Nietzel and his cousin Jerry Rembert in their heads at a Cleveland home Sept. 20.

Prosecutors say Rembert served six years in prison after being convicted of voluntary manslaughter for killing Dadren Lewis in December 1997.

Rembert can't be reached for comment while in custody. It's unclear if he has an attorney.