LAKELAND, Fla. (WTSP) -- The Polk County Sheriff’s office has arrested Victor Manns, Jr. and charged him with murder. Deputies said he shot and killed Jeffery Morrow during an online sale meet-up.

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Blake Fitez was selling an old iPhone using the app Let Go. He brought his friend Jeffery Morrow along with him.

The pair met Manns at a Family Dollar in Lakeland. That’s when authorities said Manns snatched the phone from them and took off.

Morrow chased after him with a shotgun. Manns pulled out a gun and shot him four times, according to deputies.

Polk County Sheriff Grady Judd said Manns stole from two other people just days before in a similar set up.

Cory Peace is one of the alleged victims. Manns took an iPad from him at a Walgreens in Lakeland, Judd said.

“I said are you kidding me? I was really taken off guard,” Peace explained.

Manns was using the fake name “Freddy James” on the app, according to Judd. His picture on the app matched a picture on his Facebook page.

Sheriff Judd said this is a powerful warning to be careful when you're buying or selling items online.

“You don't know who you're dealing with,” he said. “It's a total stranger. You could be dealing with the next Victor Manns, Jr.”

He suggests meeting at the Sheriff's office or a police station. As for Peace, he said he’s never selling anything online ever again.

“You look back and you think, this could have been really bad,” he said.

Judd said the people at Let Go worked urgently to help the Sheriff's office with its investigation.

Manns will make his first court appearance Friday afternoon.