Charges

The evidence needed to tie Pack to the Jackson sexual assaults wasn't tested until 2015.

Cai was interviewed and admitted to searching for child pornography on his laptop computer and using P2P software on the internet. Cai said there were several hundred files on an external hard drive in his possession and he used his laptops to download child pornography, according to documents filed in U.S. District Court. Cai also confirmed that he was an assistant professor at the University of Wyoming and he used his personal laptops to connect to the internet via the UW network.

An autopsy is scheduled for Wednesday.

Sgt. Aaron Shatto of the Natrona County Sheriff's Office says Todd Wells turned himself in Thursday.

Officers also found a machete, a pair of brass knuckles and a pellet gun replica of a firearm in the Jeep, court documents say.

Blood was smeared on the floor of the kitchen, according to the affidavit, and a serrated steak knife with suspected blood stains on it was found in the trash.

Court documents say an agent got a warrant and searched Lee's home, where he allegedly found a desktop computer in the process of downloading suspected child pornography.

The agent who swore to the affidavit says he observed at least 16 separate CDs with child pornography printed on the cover of each disc.