For the first time, Waukesha County prosecutors have connected a teenage boy to the death of his mother and stepfather. Prosecutors now say 17-year-old Nikita Casap shot and killed his mother Tatiana Casap and her husband Donald Mayer inside their Waukesha home last month.

Waukesha County prosecutors said a teen lived with his mom and stepdad’s bodies for two weeks after he murdered them.

For the first time, Waukesha County prosecutors have connected a teenage boy to the death of his mother and stepfather.

Nikita Casap faces felony charges for vehicle theft after police discovered his parents' bodies during a welfare check. The teen was later found in Kansas.