The 20-year-old student was found dead at a fraternity house in September.
It happened at an elementary school in St. Paul.
The 20-year-old lived in the fraternity house, police say.
But there's a huge caveat to the study: The Twin Cities weren't included
Mollie Tibbetts hasn't been seen since July 18.
The FBI has joined the search for 20-year-old Mollie Tibbetts.
Robert Cook is trying to regain his mobility since the crash.
She is accused of sending lewd photos over SnapChat.
The 32 year old from New Hope had sexual relations with the boy 3 times.
The video from his school talent show has nearly 4 million views.
The 21-year-old died unexpectedly on April 27.