LAS VEGAS (AP) — A 22-year-old Las Vegas man who had been sought for more than two weeks in the shooting death of a Las Vegas liquor store clerk surrendered to detectives shortly after officials held a news conference to describe the arrests of his younger brother and the alleged gunman, police said Thursday. The three each face murder, kidnapping, conspiracy, robbery and other charges in the takeover robbery and killing of store clerk Matthew Christensen during a botched robbery April 18 at a Lee's Discount Liquor.