Two MS-13 gang members, including one known as "Animal," are going to prison for decades for racketeering conspiracy convictions in two murders of East Boston teens.

Joel Martinez, a/k/a “Animal,” 23, a Salvadoran national formerly of East Boston, faces deportation after he's served his time in prison. He will not face any murder charge, the Suffolk DA's Office added today.

Martinez admitted that on Sept. 20, 2015, he murdered a 15-year-old boy on Trenton Street in East Boston by stabbing him, the U.S. Attorney's Office announced today.

Martinez admitted to an informant he did the killing: “I stabbed the culero three times,” and stated, “He stared at me and he asked me if I was going to, if I was going to stab him. I told him, ‘Yes, the Mara rules you,’” the feds said.

That slaying, federal prosecutors said today in a statement, made him a member of the ruthless gang.

Martinez pleaded guilty to "conspiracy to conduct enterprise affairs through a pattern of racketeering activity, more commonly referred to as RICO conspiracy," officials said. The federal murder charge, officials told the Herald, is only used in the death of a federal agent.

The victim, 15-year-old Irvin Depaz of Chelsea, was stabbed to death on Trenton Street just after 5 p.m. almost three years ago, according to Boston police.

Also today, Jairo Perez, a/k/a “Seco,” 27, a Salvadoran national who also faces deportation after his 35-year sentence is up, pleaded guilty to RICO charges in connection with the Jan. 10, 2016, murder of a 16-year-old boy also in East Boston.

Christofer de la Cruz, 16, was brutally killed Jan. 10, 2016, by MS-13 members who had been plotting the hit for months, a Chelsea police detective testified. (See that story here…)

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