Jury selection is slated to begin for the trial of a Plymouth Township teen who is charged as an adult with plotting to kill her family. Prosecutors say Roksana Sikorski stabbed her 12-year-old brother and tried to stab her younger sister on Oct. 17, 2014 in their home. According to Sikorski, who was 15 at the time of the crimes, her 23-year-old then-boyfriend, Michael Rivera, was outside the house sending text messages to her on how to fatally stab the family members. Rivera went to trial last summer and was convicted. He was sentenced in August to life in prison. Laurene and Jeff Sikorski adopted Roksana, along with her brother and sister, from Poland. They have maintained that Roksana was manipulated by Rivera and should not be tried as an adult.