The local prosecutor says the September death of a Clemson University fraternity pledge is now classified as unsolved and has been turned over to the sheriff's office unsolved-cases unit.

Solicitor Chrissy Adams released a statement Tuesday, a day after two lawsuits were filed seeking at least $50 million damages in the death of 19-year-old Tucker Hipps.

He fell from a bridge into Lake Hartwell during a Sigma Phi Epsilon fraternity run with 29 other students.

Adams' statement says that after extensive interviews, "all students on the run are claiming that they have no knowledge of how Tucker Hipps could have fallen" and no one saw him fall.

She say "law enforcement is at a standstill" and unable to continue without further credible leads.