BOSTON, Dec. 29, 2014—A Hyde Park man was held without bail today at his arraignment on a murder charge for allegedly stabbing Rafael Guzman to death at a party on Blue Hill Avenue, Suffolk County District Attorney Daniel F. Conley said.

AQUILES PEREZ (D.O.B. 9/7/81) was arrested late this morning by Boston Police homicide detectives investigating Guzman’s death early on Dec. 21. He was arraigned today in Roxbury Municipal Court.

Perez’ arraignment came amid the ongoing investigation into Guzman’s fatal stabbing and the non-fatal stabbings of two other men at a house party at about 4:20 that morning. Investigators believe Perez stabbed Guzman, 23, after a verbal altercation escalated into a physical confrontation. Guzman was rushed to Boston Medical Center but died of his injuries. The two other victims are expected to survive their injuries.

Today’s arrest does not mark the end of the investigation. Anyone with additional information on the incident, no matter how minor it may seem, is urged to share it with BPD homicide detectives at 617-343-4470.

Perez was represented today by attorney Brad Bailey. He will return to court on Jan. 30.

–30–

All defendants are presumed innocent until and unless proven guilty beyond a reasonable doubt.