A Kauai man pleaded guilty Tuesday to second-degree murder in connection with the stabbing death of his girlfriend. Steven Wilson told the court that he "knowingly caused the death of Kendra Lewis." Prosecutors say Wilson stabbed the 21-year-old woman to death in April 2013. Her body was found in the home they shared at the Kawaihau Sports Villas in Kapaa. Wilson faces life in prison with the posibility will be sentenced in September to life in prison with the possibility of parole