You know that nutball who took hostages at the NH Hillary campaign office Friday afternoon? Turns out he was a convicted rapist released from a Massachusetts prison. The Boston Herald’s Michele McPhee reports:

Executive Office of Public Safety spokesman Terrill Walker told me Eisenberg walked out of MCI-Concord in March 2005 after serving his entire 10-to-20-year sentence.

While Walker would not say what that sentence was for, Department of Correction sources said Eisenberg was a rapist who was let out and rearrested several times for petty crimes. That would make him the second Bay State con released under questionable circumstances to be nabbed for another heinous crime last month.

It’s a pattern:

Daniel Tavares, the butcher who hacked his own mother to death in 1991 and became a violent prisoner behind bars, is charged with executing a young newlywed couple in Washington state on Nov. 17, months after getting out of prison. Tavares was still facing two charges of assaulting prison guards, but was freed when Worcester Superior Court Judge Kathe Tuttman overturned a lower court’s bail and released him on personal recognizance.

What about 26-year-old Dorchester ex-con Michael “Stix” Addison, who is now facing the death penalty for assassinating a Manchester, N.H., police officer with a single bullet to the head last year? The slain cop, Officer Michael Briggs, was allegedly killed by the Massachusetts ex-con who was 16 the first time he tried to kill someone, according to his long rap sheet.

In that attack, he pointed a gun at a classmate and pulled the trigger - twice. The gun misfired. Then, a day after his 17th birthday in 1997, Addison knifed a basketball player in Roxbury. He was charged with assault and battery with intent to murder and armed assault and tried as a result.

A judge sentenced him to a whopping three years, freeing Addison again in 2000. He violated his probation four months later, according to court records, but was never put back in prison. Briggs, one of Manchester’s Finest, paid the ultimate price for the lax attention paid to Addison’s violent rap sheet.

Springfield police Officer David Askins was shot in March by a New York City fugitive who had been hiding from the law by settling in western Massachusetts after he jumped bail in New York on a slew of charges. Why wouldn’t the fugitive, Aaron Breevort, hide out here? Just weeks before Breevort shot Askins, he was arrested, but a brilliant judge released him on bail and told him to surrender in New York on his own honor, a law enforcement source told me.

Sound familiar? Judge Tuttman gave similar instructions to Tavares before that savage fled the state and allegedly killed Brian and Beverly Mauck.

Executive Office of Public Safety spokesman Terrill Walker told me Eisenberg walked out of MCI-Concord in March 2005 after serving his entire 10-to-20-year sentence.

While Walker would not say what that sentence was for, Department of Correction sources said Eisenberg was a rapist who was let out and rearrested several times for petty crimes. That would make him the second Bay State con released under questionable circumstances to be nabbed for another heinous crime last month.