The most detailed report I saw is vague:
On Thursday, the suspects waited for the armored vehicle to park and then immediately began shooting shortly after 10 a.m., Cuff said. The vehicle had arrived at the casino to drop off cash.
“As soon as they got out of the car, they were met with gunfire,” he said.
The guards returned fire but it was not immediately clear whether any of the suspects were struck. Police have recovered one getaway vehicle but are not sure if any others were used to flee.
Detectives are looking into whether the unknown amount of cash was stolen from inside the armored vehicle or from the guards themselves.