There has been a major development in the investigation of slain mom Kathleen West, who led a double life as a provocative model on social media. Cops say she was murdered and her husband did it. Jeff West was arrested Thursday and charged with slaying of his wife. Kathleen West was found dead on the sidewalk, across the street from her house wearing only a sports bra and bleeding from the head at 5 a.m. on January 13th. She suffered blunt force trauma to the head, police said.