Details of the alleged incident are still pretty sketchy—the San Francisco Police Department didn’t respond to a request for more information yesterday, presumably due to the holiday—but KTVU reports that the alleged incident began with Miller being denied a room at the hotel because there were none available. Miller then reportedly knocked on the door of the room the 70-year-old man and his wife were staying in, and started throwing punches after the man’s son told Miller he was in the wrong room. Both the old man and his son were reportedly taken to the hospital.

KTVU has also obtained surveillance footage from a hotel across the street from the Marriott, where a bleeding Miller ran after the alleged assault:

Last year, Miller was arrested for spousal abuse.

Update (12:28 p.m.): Here is the San Francisco police department’s narrative of the alleged incident:

On Sept. 5, 2016 at approximately 2:45 AM, San Francisco Police responded to a hotel on the 1200 blk. of Columbus Ave. in the Central District on the report of an intoxicated person. The suspect, later identified as 29 year old male Bruce Miller, was attempting to enter a hotel room that was not his. The room was occupied by an elderly couple (70 year old male and 66 year old female) both of whom do not know Miller. The neighboring guest, the couple’s son (29 years old), informed Miller he was at the wrong room when Miller charged at him starting a physical confrontation. The father came to his son’s defense when he was punched by Miller. Both the father and son were transported to the hospital for their injuries. Miller‎ was later located across the street at a different hotel and arrested on charges of aggravated assault, elder abuse, threats, and battery; he has been booked into San Francisco County Jail and has been cooperative in the investigation.

[KTVU]