The men, Kevin A. Quinn, 37, 20-year-old Aquan A. Quinn, and Kevin W. Martin, 23, all of St. Louis, were arrested on preliminary charges that include first-degree murder and aggravated robbery.

Kevin Lunney, 50, a director of Quinn Industrial Holdings, was driving from work to his home in Kinawley when he was attacked at 18:40 BST on Tuesday. He was found 22 miles (35km) away beside a ...