Police and prosecutors have recovered a surveillance video that was deleted by one of the suspects, leading to the arrest of the students involved.
The incident happened on February 4 this year and five members of the school who were already facing trial had denied knowledge of how the incident occurred.
However, according to the Mirror.co.uk, police and prosecutors have recovered a bombshell surveillance video that was deleted by one of the suspects, Braxton Becker.
The news portal said the video captured booze-filled games involving the students rapidly downing wine, beer and vodka in the fraternity house's basement.
Stacy Parks Miller said at a news conference that "He never once obtained those drinks for himself, brothers came up and gave them to him."
It brings to a total of 17 fraternity members who are now facing various charges, including involuntary manslaughter, aggravated assault, hazing and furnishing alcoholic beverages to a minor under the age of 21.
Timothy Piazza who himself was a student from Lebanon, New Jersey sustained severe injuries after the falling and did not survive.
His father James Piazza said: "[Tim] was a happy and caring human being and loving son who just wanted to join an organisation to find friendships and camaraderie. Instead, he was killed," said his father, James Pizza.