Q Radio News
A 46-year-old man has been arrested in relation to the murder of Colin Horner.
He was arrested in the Bangor area last night, and is in police custody.
Mr. Horner was shot dead in Bangor on Sunday.
The detective said he had just strapped his son into the back seat of his black Nissan Pulsar car, reg XFZ 4706, at 2.45pm when a lone gunman approached and fired at least three shots from a handgun.
"His three-year-old son was in the car and was immediately beside his father when he was shot dead in front of him," he said.
"It's a hugely barbaric act and something that will undoubtedly live with this young boy for the rest of his life."
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