PALM SPRINGS, Calif. — Officials held a press conference Monday afternoon on the tour bus crash that left 13 dead and 31 injured, which included that the owner/operator of the tour bus company, Teodulo Vides, has also been determined to be the driver and that the group was on a turnaround trip to a casino, KPCC reports.

It's still too early to definitely say what caused the accident, officials say. There were no signs of braking, such as skid marks, so far, and the tour bus was also determined not to have seatbelts.

Officials released a full list of who was on the bus Monday, including 42 passengers plus the driver. All of the passengers except for one have been positively identified. All of the victims who died have been identified, though one victim's family has yet to be reached. For the full story, click here.