Search for Missing Chicago Woman in Bahamas Intensifies After Phone Found Underwater

Authorities face challenges accessing phone data as family urges FBI involvement in the investigation.

Taylor Casey, 41, disappeared from a yoga retreat on Paradise Island on June 19.
Search teams discovered Casey's phone 56 feet underwater but have been unable to unlock it.
Casey's family criticizes the Bahamian investigation, calling for the FBI to take over.
Surveillance footage and search dogs have provided no new leads.
An unidentified man was seen near Casey's tent before her disappearance.