Two 22-year-old New York City men have pleaded guilty to their involvement in the 2011 beating and stomping death of a teenager perceived to be gay.

Prosecutors say Jonathan Echevarria, of Brooklyn, pleaded guilty to manslaughter. He'll be sentenced to 18 years in prison. Nolis Ogando, of Queens, pleaded guilty Wednesday to gang assault. He'll get eight years in prison.

Messages left with their attorneys weren't immediately returned.

Eighteen-year-old Anthony Collao (kohl-YOW') of Bethpage on Long Island had just left a party with another person when the attackers chased them.

Collao was thrown to the ground and beaten. He died two days later. Police said the suspects made anti-gay slurs and recovered a bloody metal pipe and a piece of fencing.

Four other defendants were previously sentenced to prison.