WORCESTER -- Federal prosecutors are seeking five-year sentences for the last of five local mobsters teed up for sentencing in an extortion and conspiracy case.

Francesco "Frank" Depergola, 60, of Springfield, and Richard Valentini, 52, of East Longmeadow, will be the last of five organized crime members to be sentenced for mob-related offenses charged in a 2016 indictment. Two sentencing hearings are scheduled for May 11 in U.S. District Court in Worcester.

Prosecutors did not bring RICO charges -- typically the goal for federal mob cases -- but they got far enough. They ensnared Depergola and Valentini, plus alleged Springfield Crew leader Ralph Santaniello and underlings Giovanni "Johnny Cal" Calabrese and Gerald Daniele.

All were arrested during pre-dawn raids on Aug. 4, 2016.

The group was charged in connection with two separate schemes: a $20,000 shakedown of a Springfield tow company operator in 2013 and the pursuit of an offshore debtor two years later.

Santaniello and Depergola also were charged in New York related to a $30,000 street loan they arranged for a gambling debtor in a pizza shop in Chicopee. The two collected "juice" on the payments - along with New York-based Genovese crime boss Eugene "Rooster" Onofrio. The debtor was from that state.

According to federal prosecutors' pre-sentencing memo for Depergola, he has been a bag man for the mob for decades. He served as a go-between for Sanataniello and local towing magnate Craig J. "CJ" Morel, and also for mobsters in New York seeking a street loan from Greater Springfield.

In 2014, Onofrio hit up Depergola and Santaniello for the $30,000 loan to cover a gambling debt owed to Onofrio. Depergola initially balked, according to court records.

"I've been to the can already once for this . . . I try to learn by my mistakes," Depergola told a cooperating witness who accompanied Onofrio to Chicopee to pick up the money. "Every time we did big packages of money those are the guys who end up turning on us and f---in' ratting . . . Where I come from . . . we agreed on a limit of no more than 5 g's."

Depergola, who previously served a two-year sentence for loansharking, said he would nonetheless "go back and check with my other guys because they got the bankroll for the south," referring to New York.

Unbeknownst to the others, Depergola and Santaniello later met with Onofrio and an undercover FBI agent to hand over the cash. Onofrio later complained to the agent that he'd prefer not to go to his cohorts up north for money.

"I don't want to deal with these Springfield guys. They're like girls. I mean, I'm the boss but ..." Onofrio told the government witness.

Valentini was the only of five defendants to take his case to trial in December. He was convicted of conspiracy and extortion in connection with the Morel shakedown despite his defense lawyer's argument that Valentini only attended a single meeting with Morel and never threatened him.

Santaniello, Calabrese and Daniele have already pleaded guilty to extortion and sentenced by U.S. District Judge Timothy Hillman. They received five-, three- and two-year prison sentences respectively.

Calabrese, of Longmeadow, has yet to report to prison. Santaniello has been held without bail since his arrest two years ago and has been held at prisons in Rhode Island and Manhattan. Daniele recently arrived at Fort Dix in New Jersey, according to U.S. Bureau of Prison records.