During Tuesday's brief court appearance, the 17-year-old suspect and his attorney waived his right to a speedy trial.
MORE: Teen suspect in Ricky Pearsall shooting brought gun to school week before incident, report says
Teen suspect brought gun to school before Pearsall shooting: report
His attorney told ABC7 News that on Friday, his team shared new video evidence with the prosecution that shows the altercation between the teen and Pearsall from a different vantage point.
The lawyer said he believes the newly uncovered video will demonstrate that the incident was an attempted robbery and not an attempted murder.
The suspect's attorney also took time to push back against headlines that his client brought a gun to his high school just days before the Pearsall incident.
"It's false. It's false news. That's a false narrative. He did not have a gun at school. If he had had a gun at school, three things would have happened. He would have been arrested, they would have filed a petition against him and he would have been ejected from the school. None of those things happened," said Deputy Public Defender Bob Dunlap.
EXCLUSIVE: Video shows moment Ricky Pearsall shooting suspect flees Union Square crime scene
EXCLUSIVE: Video shows Ricky Pearsall shooting suspect fleeing scene
While the attorney denied the young man brought the gun to school, he did confirm that his client still has an outstanding legal issue in San Joaquin County.
He would not, however, go into further details.
The suspect is expected to next appear in court on Sept. 26.
Meanwhile, the San Francisco District Attorney's Office still has not decided whether they want to try to have this case moved to adult court.