Lance A. Leighton has been charged with murder in the May 6 stabbing death of a Spokane Valley man. Leighton, 21, reportedly admitted to detectives he stabbed 19-year-old Jeffery P. Bieber after an argument, but said he thought Bieber was reaching for a gun, according to court documents. Leighton was arrested shortly after the stabbing and has been kept in jail for parole violations. When the first-degree murder charge was added late Wednesday, his bail was set at $1 million.