An 18-year-old Wisconsin man accused of killing his parents and stealing their money to fund a plan to assassinate President Trump pleaded guilty to two homicide counts in a deal with prosecutors Thursday, locking himself into two life prison sentences. Nikita Casap pleaded guilty to two counts of first-degree intentional homicide in Waukesha County Circuit Court in connection with the deaths of his stepfather, Donald Mayer, and his mother, Tatiana Casap, last year. In exchange, prosecutors dropped seven other charges, including two counts of hiding a corpse and theft. Each homicide count carries a mandatory life prison sentence. Judge Ralph...