Michael Angelo Schiavone is the fourth former brother of Beta Theta Pi to plead guilty in the Tim Piazza case.
The Centre County judge assigned to oversee the trial for former Beta Theta Pi fraternity members has recused himself from the proceedings.
"We thought you know we can kind of go to battle with him and the university or we can try to work with him and try to effectuate change," Jim Piazza, Tim's father, told CBS.
The settlement allows the Piazzas to move forward with claims against other parties related to Tim Piazza's death, including "the individual perpetrators," according to a release from Piazza attorney Tom Kline.
"The guilty plea of Bo Han Song is one more step in a long road of towards justice for the parents of Tim Piazza."
Twenty other defendants still face charges in the case. A trial for most of them is scheduled for February 2019.