ITHACA, N.Y. (WSYR-TV) – Following the mysterious death of their son at Cornell University last month the parents of Antonio Tsialas are putting out a plea for help.

Tsialas, 18, a Freshman at Cornell was last seen leaving an event at the Phi Kappa Psi fraternity on Thursday, October 24. When he failed to meet a family member the next morning he was formally reported missing.

Cornell University Police later found Tsialas’ body Saturday afternoon in Fall Creek near Ithaca Falls but have released limited information about their investigation.

Nearly a month after their son’s death Tsialas’ parents are looking for information and offering a $10,000 dollar reward to anyone who can explain what happened to their son after the fraternity event.

Tsialas’ parents, John and Flavia spoke to ABC’s Good Morning America.

“There is so much information we are waiting for and we are hoping something will come out because we would like the truth. Our son was a good kid with a lot ahead of him,” said John Tsialas.

A lawyer for the family said the fraternity should answer for what he believes is negligence.

“This fraternity chapter broke every rule in the book, had they not had this dirty rush party, which they knew they weren’t supposed to do, and had they not served alcohol, which they knew was illegal you can be sure Antonio would be here today,” said the Tsialas’ lawyer David Bianchi.

Following an unrelated investigation, on Friday, November 15 the Phi Kappa Psi fraternity was suspended by Cornell University after being found guilty of violating the university’s anti-hazing policy in 2018.