Who is this guy - Tommy Ricciardi? I know he is a lucchese capo, but who he is, there is no information about him. Is he murderer?

Tommy Ricciardi might have temporarily functioned as an acting capo while Accetturo was indicted on credit card and wire fraud charges in the mid 1980s. In the early 1990s, Ricciardi was arrested for murder and extortion and turned government witness against the Lucchese bosses.
I think he was born in 1952, and was made in 1983.
There´s plenty of info on him on the net. Google him.

I'm not so sure this guy was ever a capo? He has been on a few documentaries providing insight.

As far as i know he was a soldier who battled with the Taccetta brothers for control of the jersey crew. He flipped in 1993 when they were all arrested.

Do you know other documentaries with him except Manhattan mob rampage?

You can read about him and the NJ crew in an old book called The Boys from New Jersey. I think it was re-released later on under a new title, Mafia Wiseguys. He was involved in the murder of Vincent "Jimmy Sinatra" Craparotta, a video poker guy who was beaten to death with golf clubs for not paying tribute to the Luccheses. Ricciardi has often been said to be one of the guy people were most surprised about when he did flip.

I think Tommy said after he saw a hit was ordered on Chiodo's sister even though families were supposed to be protected/separate from the life, that was the last straw for him, there was no more honor left and he decided to leave the life.

Yup that was true. Thankfully she survived but its showed how far they ahd gone. Thats why i feel guys like casso,demeo,and pitera were feared by many mobsters

Before his 1993 murder conviction, Tommy Ricciardi was the top enforcer for the Lucchese crime family’s New Jersey faction. Tall, slender, with natural good looks, Ricciardi was in actuality the kind of honorable man Silvio Dante believes he is. The television mobster, like his real-life counterpart, likes to dress well in wiseguy chic, and they both carry themselves with a don’t-mess-with-me swagger.



Vincent 'Jimmy
Sinatra' Craparotta,
victim
Ricciardi’s negotiating skills were a bit blunter than Silvio’s, and his version of conflict resolution was more hands on. In 1984 Ricciardi was asked to send a message to Vincent Craparotta, the uncle of two brothers who owned the video poker factory on the Jersey shore. They wanted a piece of that company, and they wanted Craparotta to convince his nephews that they should cooperate. Wielding golf clubs, Ricciardi and an associate paid a visit to Craparotta one morning. Their intention was to scare the man, but things got out of hand, and Craparotta ended up dead, beaten to death with a nine iron. In 1993, Ricciardi, boss Michael Taccetta, and others stood trial on a variety of charges stemming from the family’s attempt to extort the Joker Poker company. Ricciardi alone was convicted of the murder.


A type of video poker machine (AP)
Prior to that trial, Ricciardi did show a willingness to put words before bullets when the order came down from the Lucchese leadership in New York to “Whack New Jersey!” He and former boss of the New Jersey faction Anthony Accetturo met with big boss Vic Amuso and underboss Anthony “Gaspipe” Casso at Newark International Airport to resolve their differences.

Unfortunately the meeting did little to defuse the situation; the contract remained in force, even after Amuso and Casso later went underground to avoid arrest. Acting New York boss Alphonse “Little Al” D’Arco took over for the fugitive bosses and was determined to carry out the contract on the Garden State gangsters, including Ricciardi who resorted to hiding guns in the bushes around his home, fearing an ambush. Ricciardi went so far as to clear the woods across the street from his Dover Township, New Jersey, horse farm to eliminate possible hitmen hiding places

While at home, he took to wearing an Uzi submachine gun attached to a string around his neck.

After Ricciardi’s murder conviction, he turned state’s witness and received a reduced sentence. As part of the terms of his arrangement with prosecutors, Ricciardi had to tell everything he knew about organized crime in the Garden State, and he had no trouble coughing up what he knew about Michael Taccetta, his former childhood friend and bitter enemy.
From Taccetta’s point of view, Ricciardi is a rat who violated his Mafia oath and betrayed his crime family to save his own hide. But Ricciardi saw it differently. The mob had been deteriorating for years. The old traditions were evaporating and so was the Mafia’s old sense of honor. Taccetta was symptomatic of the new level of greed and opportunism that was corroding the Mob, and Ricciardi couldn’t live with that anymore. He could no longer defend an organization whose leadership he didn’t respect.

Ricciardi served his sentence under witness protection and has been released.

Source: http://www.trutv.com/library/crime/gangsters_outlaws/mob_bosses/sopranos/3.html

Ricciardi supposedly played a role in solving (by acting as an informer) a fire at a Seton Hall dorm that killed a few students a couple of years ago.

Whenever I see this guy on TV he comes off as intelligent and articulate, and as someone who simply made a rational decision.

Exactly, I think the same. He looks more like businessman than a mobster.