What happened to Chelsea Cobo? Young mom vanishes without a trace as shadowy witness implies foul play

The mother of a missing Brooklyn woman whose unsolved 2016 disappearance has prompted suspicions of trafficking and foul play is poised to launch a networking app that she hopes can spare other families from the trauma she's endured over the past eight years.

Chelsea Cobo was 22 when she was last seen in Sunset Park on May 6, 2016. She had a 10-month-old son but had recently been hanging out with a sketchy new crowd, a group she met during a dubious hospital stay months earlier, according to her adoptive mother, Rose Cobo.