Remmer disappeared from the Fairmont Hotel on Mason Street in San Francisco, California on October 6, 2011 while on a business trip. He was supposed to return home on October 30. At 11:00 p.m. on October 6, he called a friend who was in Arizona and asked his friend to pay for him to get a room that night. His friend agreed to pay, but then Remmer told him to forget about it because he had found a place to stay. No other calls were registered to his cellular phone. He'd left all his luggage and personal belongings with the bellman on the day of his disappearance, and never picked them up. He hasn't used his debit cards, credit cards, or his email or Facebook accounts since October 6, and his car was left behind at his father's house in Fallbrook, California. Remmer suffers from bipolar disorder and has been hospitalized for his condition in the past. He requires medication which he doesn't have with him.