One of the defendants attacked the other before being restrained.
Ricardo Cruz and Alfredo Acquino were both convicted in the 2014 shooting of Ximena Meza.
$57.5K reward offered in fatal shooting of 9-year-old girl
Prosecutors say they were trying to shoot members of a rival gang at the time.
Both were found guilty of one felony count each of second degree murder, street terrorism, possession of a firearm by a felon, and possession of a firearm within 1,000 feet of school grounds with sentencing enhancements and allegations for criminal street gang activity and a gang member vicarious discharge of a firearm causing death. It is also alleged that Cruz and Aquino were both previously convicted of a serious felony in July 2014 for one felony count each of possession of a prohibited weapon and street terrorism.
Both men are facing 40 years to life in prison when they're sentenced in August.