Who is Peter Martinelli? Texas man arrested for allegedly fatally stabbing psychiatrist mother 'multiple times' LUBBOCK, TEXAS: A tragic death of a child psychiatrist has left a community reeling as her 24-year-old son allegedly stabbed her to death. According to the Lubbock Police Department, officers responded to a distressing domestic violence call at 7.08 pm on Thursday, August 10, at a home in the 4500 block of 20th Street. They found Dr …