The homeless man accused of a shooting spree in Santa Monica has been charged with three counts of attempted murder amid a wave of violence from transients that has Los Angeles residents on edge. David John Hairston II, 31, allegedly ambushed and shot a police officer at a pedestrian mall in the seaside enclave on Wednesday, just days after allegedly shooting two teens who were riding a self-driving taxi, according to prosecutors. Hairston was arrested after a citywide manhunt; he faces various weapons charges on top of the attempted murders, with a maximum sentence of 104 years to life in...