RHINELANDER - Ryan Sisco might need to testify against Ashlee Martinson to keep his end of a deal with prosecutors. The 22-year-old Sisco is charged with having sex with an underage Martinson, who is 17.
Martinson and Sisco were arrested while driving through Indiana in March. Prosecutors believe Martinson killed her mother and stepfather the day before in Rhinelander. They don't believe Sisco was involved in the killings. But he faces a misdemeanor charge of sex with Martinson.