Update, 4 p.m. Tuesday:
A San Francisco Marriott Marquis housekeeper was discovered in a penthouse suite of the hotel at Fourth and Mission streets Sunday suffering life-threatening injuries, police confirmed Tuesday, and there appears to be a link between the assault and a suicide at the hotel earlier that day.
"Evidence was located at the scene of the assault that links the assault and the suicide together," SFPD spokeswoman Officer Grace Gatpandan said. She said she is not allowed to elaborate on the nature of the evidence.
The city's medical examiner identified the deceased guest Monday as Alexander Damhuis, 26, of Brooklyn, New York.
Damhuis was an employee of the Cardiovascular Research Foundation, according to his online profile and news reports. The foundation is hosting a medical convention in San Francisco this week. His mother, Irma Damhuis, is the foundation's director of external relations and the main press contact for the conference.
Gatpandan said SFPD's special victims unit is investigating the assault, and no suspects are believed to be at large. The housekeeper, whose name KQED is not publishing at this time, was still listed in critical condition at San Francisco General Hospital Tuesday afternoon.