Ross was given a lethal injection at Osborn Correctional Institute in Somers, Conn., at 2:25 a.m. Friday, just one month before the 21st anniversary of his final killing, the Norwich Bulletin reported.
"Today is a day no one truly looked forward to -- but then no one looked forward to the brutal, heinous deaths of those eight young girls," Gov. M. Jodi Rell said in a statement minutes after the execution. "I hope that there is at least some measure of relief and closure for their families."
Ross was convicted of murdering four teenagers and girls in the 1980s, though he had confessed to killing a total of eight.