Jeff Nimrick, manager of the Macomb Farm King, was in his office at about 12:30 p.m. Wednesday, shortly before Jonathan L. Labbe walked in with an AR-15 semiautomatic rifle.
Labbe, 19, of Tennessee, Ill., wanted ammunition.
"What?" asked Farm King employee Jon Robinson.
"I want you to unlock all of the ammunition cases," said Labbe as he put the barrel of the unloaded AR-15 to Robinson's chest.
As Robinson turned around after unlocking the ammunition cases, Labbe jumped over the counter and grabbed a box of bullets.
Robinson called Nimrick.
"I've got a gentleman here with a gun," a terrified Robinson told Nimrick on the phone.
"I said, 'What?' and he says, 'he's got a loaded gun,' and I took off running," Nimrick said.
Labbe's actions set off what would be an hours-long standoff with police that ended with Labbe dead of a self-inflicted gunshot wound. Authorities have not said when Labbe actually died. He was pronounced dead about 6:50 p.m., shortly after police entered the building.
Nimrick, who was interviewed Friday, said he ran past the service desk and cash registers in the front of the store. He ran to the center toward sporting goods, where he found Robinson in the aisle.
He yelled to Robinson to get out and yelled the same to customers who started to walk in the front door.
"They were coming in and I yelled at them to get out and ran back to sporting goods," Nimrick said.
Wanting to check where Labbe was, he peered around some fake trees in the sporting goods section used to display deer stands. He saw Labbe standing behind the counter ripping open a box of ammunition.
He ran back to the front of the store, where he found customers waiting in line.
"Get out of the store, get out of the store," he yelled.
More people were in the east end of the store. Nimrick directed them out to the east lot.
Through the ladies clothing section he went, not knowing if Labbe was on the move. When Nimrick got back to sporting goods,he said, Labbe loaded the magazine, inserted it in the gun and looked up as he walked around the gun counter.
"You don't want to be a part of this," he told Nimrick, who then ran back to the service desk in the front of the store.