Authorities announced three men have been arrested and charged with concealment of a death.
Joanna Clark and her teenage daughter Shariece disappeared February 4, 2017.
It's been three weeks since Emily Dull Anderson disappeared.
Jared Hanna was last seen on July 2, 2011.
Floyd Galloway Jr. was taken into custody Tuesday for the attempted sexual assault of a jogger.
Just weeks after arriving at the University of Illinois, Yingying Zhang stepped off a bus and got into a black hatchback. She hasn't been seen since.
Jonathan Reynoso and Audrey Moran disappeared on May 10, 2017.
The search for Yingying Zhang continues as her family releases a statement about the case to Dateline.
Calandra Stallworth vanished after leaving work on March 27, 2017.
The last time anyone heard from or saw Lisa Diehm was on May 10.