The Coast Guard has worked around the clock since Saturday trying to find the 33-year-old and despite near perfect conditions for the search, was unable to find her. They suspended the search last night.
Carnival says that video shows Broberg sitting on a railing on the 10th floor of the ship, then falling over backward into the Gulf around 3am. However, she was not reported missing by her companions for several hours, and the Coast Guard did not start looking for Broberg until 15 hours after she fell overboard.
"We had a good opportunity to find the individual were they in the search area we were looking. Unfortunately, we're unable to find the individual as yet," Lt. Commander Mike Martin of the USCG.
RELATED: Cruise ship passenger goes overboard on Carnival Liberty
Broberg's family says Samantha is a mother of four and they had hoped that the Coast Guard would be able to bring her home.
Statement from Samantha Broberg's family:
"We are shocked and deeply saddened by the incident that occurred on the Carnival Cruise Ship. We hope and pray the U.S. Coast Guard is able to bring Samantha home. We ask for privacy as our family comes together during this difficult time."
We're following this story on Eyewitness News. Watch for updates on air, online and on our mobile news app.
Keep checking back on this page to get real-time updates as this story unfolds. To get alerts for breaking news, download the abc13 news app for iPhone or Android. You can also get breaking news alerts sent to you by email.