The death of a 24-year old cruise ship singer has baffled investigators and has left those who knew her with too many unanswered questions.

The body of Jackie Kastrinelis was found in her cabin on Sunday after the ship had docked in Australia, and after an investigation of the room, police say they don’t believe foul play was involved. However, her family is seeking any information they can get from someone aboard the ship who might have seen or heard something. Their information is listed here.

There is some speculation that Kastrinelis’ death may have come as a direct result of a head injury she sustained during a rehearsal on board the Seven Seas Voyager, but nothing has been confirmed at this time. An autopsy and toxicology report are still pending. Those who knew the young woman have been shocked and saddened by the news.

“She stood out a little bit brighter … but you can say that about anybody,” Michael Morris, the director of music for the University of Hartford School of Theatre division, said. “But about Jackie it is absolutely true.”

The cruise line, owned by Regent, released a statement regarding her passing.

“The Regent Seven Seas Cruises’ family is deeply saddened by the unexpected passing of Jackie. Our hearts and prayers go out to her family and loved ones.”