The pleas of Esteban Nunez, 21, son of former speaker Fabian Nunez, and another defendant, Ryan Jett, 24, were entered just as jury selection was beginning for their trial on murder charges in the October 2008 fight leading to the death of Luis Santos, 22, a student at San Diego's Mesa College, The San Diego Union-Tribune reported Wednesday.
The two could face 16 years in prison when they are sentenced for voluntary manslaughter and assault June 25, the newspaper said.
The defendants were reportedly upset after being turned away from a fraternity party, according to evidence presented at the preliminary hearing.
Defense attorneys said Nunez and Jett were acting in self-defense when a fight broke out, the Union-Tribune reported.
Notable deaths of 2014 [PHOTOS]