The victim told police that the two got into an argument that turned physical before he was stabbed. He needed surgery to reconnect his intestine.
Video of the incident shows a man spraying protesters at an anti-Trump rally during a scuffle on the famous pier on Saturday.
As PG&E begins a second round of fire-safety power shutoffs, it warns a third, bigger blackout could be needed as soon as the weekend.
Pantaleo filed a lawsuit Wednesday against the department alleging that decision to terminate him was "arbitrary and capricious," according to his lawyer.
“There are cases that won’t get solved or will take longer to solve,” a Florida law enforcement official said.