This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

EAST HARLEM, Manhattan — Police charged a Manhattan father with murder after he allegedly killed a man who made sexual comments toward his young daughter, law enforcement sources said Wednesday.

The victim, Ariel Alvarado, 46, was found unconscious in front of 20 East 109th St. around 9:15 p.m. on Aug. 3, police said. He was taken to a hospital, where doctors discovered head trauma and severe internal injuries, according to investigators. He later died, police said.

During the investigation, police found out Alvarado allegedly made sexual comments about a 14-year-old girl, and the teen’s father punched him in the face and threw him down a set of stairs in retaliation, according to sources.

Police arrested the father, Luis Ortiz, 39, on Aug. 11 and charged him with second-degree murder and two counts of assault, according to the NYPD. Ortiz lives in an apartment building next to where Alvarado was found beaten and unresponsive, police said.