A man lights a candle Monday at the entrance of the Star Ballroom Dance Studio after a mass shooting during Chinese Lunar New Year celebrations in Monterey Park, California.

MONTEREY PARK, Calif. — California police, seeking to learn the motive behind one of the state’s worst mass shootings, on Monday searched the home of the elderly gunman who killed 11 people in a Los Angeles area dance hall on Saturday before fatally shooting himself.

The 11th person died at a hospital Monday.