BOARDMAN — One-time Valley mob boss Lenine “Lenny” Strollo, 90, the former organized crime boss who cooperated with the FBI and provided testimony on several Youngstown-area killings and other violent crimes, has died.

His arrangements are being handled by Rossi and Santucci Funeral Home, which confirmed his death and said details are pending.

“His passing is an end of an era. Thank God that his organization has been completely abandoned,” said Mahoning County Prosecutor Paul Gains, who was on a receiving end of one of the mobster’s more famous attempted hits.

Strollo came up through the ranks of the Pittsburgh family and in 1990 was convicted on gambling charges and sentenced to 14 months in prison.

On August 19, 1991, mob figure Joey Naples was killed in a mob hit in Youngstown so Strollo then became the boss of the Mahoning Valley operation: bookmaking, poker machines, narcotics trafficking and vending machines aided by his brother Dante.

When Gains was first elected, Gains was shot several times but survived.

According to the Associated Press in 1999, three men who arranged the shootings of two prosecutors were convicted of working for the mafia in Youngstown.

Bernard Altshuler, 68 at the time; Lavance Turnage, then-26; and Jeffrey Riddle, then-38, were convicted in an investigation that also brought a deal with Strollo and indictments against public officials.

Altshuler, Turnage and Riddle, all of Youngstown, were sentenced to life in prison with no parole on the convictions of racketeering, conspiracy to racketeering and illegal gambling.

Strollo, 68, at the time, pleaded guilty to running the operation in eastern Ohio, plotting to kill a rival gang leader, running a numbers game and bribing officials.

Prosecutors claimed his three employees arranged the 1996 killing of Ernie Biondillo — Strolloás rival — and the woundings of Gains days before he took office and former Prosecutor Gary Van Brocklin.

Strollo testified in the U.S. District Court trial that Altshuler arranged the Biondillo killing. Turnage and Riddle were convicted of carrying out the acts of violence to further mob operations.