From The Houston Chronicle:

After three days on the run as the focus of a nationwide manhunt, San Francisco political and media consultant Ryan Chamberlain was captured within city limits on Monday evening, the FBI said, hours after an apparent suicide note was posted on social media. Chamberlain was taken to a police station after being detained near Crissy Field and booked on suspicion of possessing explosives in violation of federal law, said a law enforcement official who asked not to be identified.