personal friend in a conversation that Kasman was recording. 

Now for Kasman’s next stupid human trick. 

Gang Land has learned that Kasman gave a heads up to a mob associate in the crew of Gambino acting capo Joseph (Joe the Blonde) Giordano (left) after obtaining information that the crew member was under investigation. 

Sources say that Kasman alerted Matthew Bokelmann, a 38-year-old body-building buddy who worked for Giordano, that Bokelmann was being investigated by state authorities for gambling, loansharking and selling steroids from a gym he operated in Bellmore, Long Island. 

At the time, according to FBI documents, Kasman was tape-recording Bokelmann for the FBI – he recorded dozens of conversations with him – as Bokelmann drove him on many of his appointed rounds as he met with Corozzo and dozens of others in the New York area. 

After learning of Bokelmann’s legal problems from his FBI contacts, Kasman

did not visit his friend to warn him. He used the phone instead. The mindless blunder led to him being overheard on a wiretap by the Nassau County District Attorney’s office, sources said. 

“He really liked the guy. He felt sorry for him, and was trying to do his friend a favor,” said one law enforcement source, adding that Kasman didn’t tell Bokelmann how he found out about the DA’s probe, which sources say is still continuing. 

The Nassau DA’s office declined to comment about the case.

Most law enforcement officials say the obstruction of justice charge is much more serious and harder to overlook than the $80,000 theft since the obstruction casts a dark cloud of doubt over the trustworthiness of all of Kasman’s information that isn’t on tape. It also undermines the validity of the tape-recorded evidence that he did gather. 

“It’s a huge slap in the face of the prosecution if the guy ever has to take the stand,” said one former federal mob prosecutor, who noted that Kasman’s double dealing would ruin his credibility with a jury. 

“Since he’s admitted double-crossing the government at the same time he was working for it, his uncorroborated testimony is essentially worthless,” said the former prosecutor,

now a defense lawyer. “And even the taped material can be questioned because you don’t know what was said while the recorder wasn’t working.” 

Despite his breach, the feds continued to use Kasman as an undercover operative, and permitted him to manually record his conversations with mob targets for seven more months, until July 2007, when the feds finally pulled the plug on his undercover work, according to FBI documents obtained by Gang Land. 

“Another bizarre revelation in a cooperation effort laden with bizarre revelations,” said attorney Gerald Shargel. (left)

Despite committing crimes during his undercover work that will probably prevent the feds from ever using him as a trial witness, and even though Kasman pleaded guilty last year in a guidelines deal calling for 21 months, he still might not end up behind bars. 

That’s because the feds redrafted the deal he had last year and agreed to write a letter to his sentencing judge about help he gave the government in order to get Kasman to agree to testify at a pre-trial hearing at which the feds managed to disqualify lawyer Joseph Corozzo (right) from representing his father in his pending racketeering indictment. 

Kasman was never called, but last month,

sources say, Brooklyn Federal Court Judge Nicholas Garaufis (left) accepted the new plea bargain in a sealed proceeding at which Kasman pleaded guilty to racketeering. 

Neither the FBI nor the Brooklyn U.S. Attorney’s office would discuss their handling of Kasman, or the details of his obstruction of justice, which took place in December 2006. FBI officials declined to discuss the agency’s current rules for allowing cooperating witnesses to record conversations on their own. 

Direct supervision by experienced FBI agents had been the norm, but from July 2005 to July 2007, Kasman tape recorded many wiseguys and others with little or no supervision as he flew back and forth from New York to Florida, according to court documents and law enforcement officials who spoke only on a promise of anonymity.  

During that period, Kasman used a manually-activated tape recorder he was given by the FBI to tape record his targets, including Gotti’s brother Peter, his son, the crime family’s new acting boss, John (Jackie Nose) D’Amico, and Gotti’s widow, Victoria. 

Said Seth Ginsberg, an attorney who represents John (Junior) Gotti, as well as a defendant in the pending 62-defendant Gambino indictment: “It is not unusual these days to allow informants to control the recording devices, though if Kasman in fact has abused the privilege, that should have changed the landscape.”

A month after Kasman’s warning, Bokelmann expressed his heartfelt appreciation to his benefactor for the heads up, and he marveled about the timing of his call, according to snippets of a tape recording of the discussion that Gang Land has heard. 

The reason: two Bokelmann associates who also worked for Joe The Blonde Giordano  were among 17 suspects nabbed on gambling and drug trafficking charges by the Suffolk County District Attorney’s Office on December 27, 2006, within days of Kasman’s phone call. 

The pair, Salvatore Gerrato, (left) and Frank Lonigro, were among the many mob associates whom Kasman had recorded. During one session, according to FBI documents, Kasman and JoJo Corozzo visited a Merrick, L.I. pizzeria that Gerrato used as a base of operations for a marijuana distribution network. 

It's unclear how it worked out, but a continuing subplot during  Kasman’s undercover sting, was his effort to help Bokelmann get transferred out of Giordano's crew. 

Gerrato, 47, pleaded guilty to gambling and marijuana possession charges last month. He is slated to be sentenced June 24. Bookmaking charges are still pending against Lonigro, 35. (right) His next scheduled court date is June 13.