Sun City, Florida -- They were held at gunpoint, fearing for their lives.

Now we're learning more about what happened inside of a Sun City RadioShack that led to a chase and shooting that shut down I-75 for hours.

"She was scared for her life," said Rafael Huerta. He's talking about his sister, who was one of the four victims held at gunpoint Wednesday in the RadioShack at 3842 Sun City Blvd.

"They held her hostage and some other lady hostage in the back (and) told them get on the ground," he said.

Interview with Rafael Huerta, the brother of a victim held at gunpoint during a robbery at RadioShack in Sun City.

Rafael Huerta's sister is tough. She's going back into work today after suspects Jovanny Pena and Bryna McLaughlin rushed in and demanded money and phones Wednesday.

"She was just terrified," Huerta said.

And so are some of the people who shop there.

"It's very frightening and people have a false sense of security here and they really shouldn't," said shopper Nancy Kieran.

"This is kind of shocking. I've never heard of this happening before," said shopper Marty Barrett.

Hillsborough County Sheriff's deputies say Pena and McLaughlin led them on a chase up I-75 where they were caught after a police shootout. They're both being charged with armed robbery and false imprisonment for the hold up.

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"I was worried," Huerta said. "I mean something way worse could have happened."

Deputies say the pair stole 90 cellphones worth $56,000, but Huerta is baffled.

"Why risk your life and many other's lives for a cell phone? And a couple hundreds dollars?"

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