One of the men was an 18-year-old whose family was watching when he fell to his death, authorities said.
As of Sunday, neither of their identities had been released, but the owner of the Lodi Parachute Center, Bill Dause, told the Associated Press that the younger man had been jumping in tandem with a veteran skydiving instructor who had logged about 700 jumps.
San Joaquin County sheriff's deputies responded to a 911 call about 10 a.m. Saturday from someone reporting that one of his field workers had witnessed a skydiver hit the ground without an open parachute.
After deputies arrived at the Skydive Lodi Parachute Center in Acampo, they located the bodies of the tandem jumpers in a field, according to the sheriff's department. The parachute did not appear to have deployed until after impact.
The FAA has since taken over the investigation into the fatal incident.
Dause, meanwhile, continued business as usual throughout the day, telling KCRA 3 “you keep going.”
“I am always liable, but I am not concerned. We didn’t do anything wrong,” Dause said. “It's a love of the sport. You keep going. You feel sorry for the people who can't participate any longer.”