A man who beat a 68-year-old to death in the East Village last year has been sentenced this week. Jamie Pugh, 21, was sentenced for 25 years to life in prison for killing Ruan Wen Hui in May 2014.

Graphic surveillance video showed Hui being approached by Pugh on East 6th Street near Avenue D at around 8:45 p.m. on Friday May 9th, 2014. Pugh throws Hui to the ground before punching and stomping on his head. Hui, who lived on Avenue C and had just walked his grandchildren home at the time of the attack, died of his injuries a few days later.

Pugh and his friends allegedly attacked two separate victims about a half hour before Hui was killed. Prosecutors also said Pugh was captured on surveillance video allegedly beating two other men unconscious in unrelated attacks the week prior to Hui's murder.

Pugh was found guilty of second-degree murder in the unprovoked killing last month. "You've ruined this family's life. You are a danger to this community whenever you are at liberty," Manhattan Supreme Court Justice Ann Donnelly said in court.

Hui's widow Ling Tsang said in a letter read by prosecutors that her husband's killer is a "menace to society...My husband was alive and got beat to death by this hideous criminal."