Harjinder Singh appeared in California court for an extradition hearing Tuesday. Authorities say he flew to Sacramento after the Turnpike accident and was later arrested.

A semitruck driver accused of making an illegal U-turn on Florida’s Turnpike and causing a crash that killed three people from South Florida appeared in court Tuesday in California.

Harjinder Singh is accused of making an illegal U-turn on Florida’s Turnpike in St. Lucie County while driving a commercial ...