San Diego, CA : Family of Arizona victims killed in Coronado Bridge crash speak on Thursday 20 October 2016

The family of the Arizona victims in the Coronado Bridge accident will hold a news conference at 1 p.m. Thursday to discuss the arraignment of the truck driver who killed four people when his pickup truck plunged off the Coronado Bridge and landed on the crowd below in Chicano Park.

Richard Anthony Sepolio, 24, was arraigned from his wheelchair in a hospital conference room on four counts of gross vehicular manslaughter while intoxicated and two DUI counts. He faces nearly 24 years in prison if convicted and had his bail set at $2 million.

Related: Four killed, nine injured after truck plunges off Coronado Bridge

Sepolio suffered a broken hand, broken rib and fractured vertebrae in the crash, according to his attorney, and it's unclear when he'll be discharged from UCSD Medical Center.

The crash that occurred shortly after 3:30 p.m. last Saturday killed Annamarie Contreras, 50, and Cruz Contreras, 52, a married couple from Chandler, Arizona, and Hacienda Heights residents Andre Banks, 49, and Francine Jimenez, 45.

Authorities said Sepolio, a Navy aviation electronics technician assigned to Coronado-based Helicopter Sea Combat Squadron 6, lost control of his GMC pickup truck, which went over the concrete railing on the north side of the bridge and fell more than 60 feet.

Related: Identities of four killed after truck plunges off Coronado Bridge released

Prior to the crash, Sepolio used the Uber ride-hailing service to go a restaurant, where he had a bottle of wine and a couple of cocktails, Deputy District Attorney Cally Bright alleged.

Sepolio and a female friend also used Uber to go back to her house, and despite her warnings to the defendant not to drive, he got in his truck and headed home toward Coronado, Bright told reporters.

The defendant told police that he was on Interstate 5 where it transitions onto the bridge in a 45 mph zone and was trying to move over to the left lane, Bright said.

According to Sepolio, another driver wouldn't let him move over, so he gunned his engine and was going about 81 mph when he hit the left guardrail and spun off the freeway and landed in Chicano Park, the prosecutor said.

Source :