Aleah Beckerle disappeared in July of last year from her family's Evansville, Indiana home.
Karena McClerkin was reported missing on October 11, 2016.
Maricela Garcia disappeared on January 12, 2017 while out shopping with her sister.
Michael Chambers is the last person one would imagine would just disappear.
Zuzu Verk disappeared in October and her remains were found in early February.
Cory Hixson was last seen seen on March 11, 2017.
Toni Anderson vanished January 15, 2017.
Alexis Say, who disappeared in January after leaving a Miami hospital, has been located safe, her mother Jennifer has told Dateline.
Dakota James was last seen the night of January 25, 2017.
Lance Perkins was last seen the night of October 23, 2016.
Elaine Parker has been missing for more than three weeks.
Bryon Macron, a married father of three, was last seen the morning of December 16, 2016.
Alexis was last seen on January 23 in the lobby of Miami, Florida hospital.
Zuzu Verk's boyfriend was arrested over the weekend in connection with the case.
“With these types of cases, we know you only have so much time before it’s too late."
Robert Fabian was arrested on a warrant for tampering with, or fabricating, physical evidence by concealing a human corpse.
34 seconds. That is all it took for Maria Llamas to disappear.
Shadow McClaine was last heard from on September 2, 2016.
Authorities are investigating Brandon Herring's death as a homicide.
Maricela Garcia vanished while out shopping on January 12, 2017.
Derek Adams was last seen in the early hours of December 29, 2016.
"How can a person just disappear?"
Stacey Smart was last seen on October 12, 2016.
Bryon Macron was last seen on December 16, 2016.
Monica Sykes was last seen on October 28, 2016.