Did a laborer’s fall from bridge arise out of his employment?

A laborer who was diabetic and insulin dependent worked for a company that repaired bridges. Workers were resurfacing a bridge deck. The work was completed between a four-foot tall concrete barrier placed to divide the work area from traffic and an outside four-foot high guardrail placed to prevent cars from traveling off the bridge. It was disputed whether the laborer accidentally fell or jumped from the bridge. He incurred serious permanent injuries when he fell 60 feet.