SALEM – Blake Colella, the 26-year-old Swampscott native currently serving up to 12 years in state prison for stabbing a man in 2006 and for witness intimidation, assault and narcotic charges, pleaded guilty to physically beating and abusing his live-in girlfriend last year while out on bail.Wednesday afternoon, Colella changed his plea to guilty to his final case in Salem Superior Court before Judge Howard J. Whitehead.Currently serving his punishment on three cases at Souza Baranowski Correctional Institute, a highly secured facility for the more dangerous convicts, Colella, 26, now brandishing an array of tattoos on his arms, pleaded guilty to two counts of assault and battery with a dangerous weapon, five counts of assault and battery as well as threats to kill and witness intimidation.He was given a six-month suspended House of Corrections term and placed on three years of probation, but the punishment will not commence until he completes his state prison term.He was also ordered not to have any direct or indirect contact with his accuser in the case.The judge adopted the recommendation offered by Assistant District Attorney Michael P. Hickey and defense lawyer Ronald J. Ranta.The charges pertain to the physical abuse of his then 21-year-old live-in girlfriend, who said Colella physically abused her at his 69 Lynnway apartment on or before June 13, 2007 and on or before June 21, 2007.She had lived at that address for two and a half months prior to the incident.The victim, who was not present during the plea and had last been living in Salem, also told authorities that on June 25, Colella beat her, struck her in the head, took a telephone cord and wrapped it around her neck.He also struck her with a cell phone charger cord and a set of keys and threatened to kill her if she testified at his trial involving the stabbing of Richard Dalton of Lynn, outside the 7-Eleven at 264 Essex St., Lynn, on the evening of May 19, 2006 – one of the three cases he is now serving in state prison.He had received 7-to-10-years in state prison after being convicted by a jury on that case.Following that trial, he pleaded guilty to assault, narcotics and witness intimidation charges involving two additional cases.In 2006, he admitted that he intimidated two female witnesses with a handgun, took them to a basement, threatened to shoot them and said he would blow up their respective homes if they testified against him in the stabbing case.Then in early 2007, Colella was arrested in Lynn after being caught with more than nine grams of heroin. Another packet of heroin was also found on his person during booking.For those two cases, he was slapped with another two years in prison, followed by two years of probation.