By Ffion Lewis A family-of-five chased down and cornered a credit card thief at shopping mall. The family, from Ann Arbour, Michigan, US, spent their Sunday afternoon tracking down and chasing a thief after he pickpocketed their credit card. Julie Kobylarz, 34, managed to work out where the thief was and identify him after he made transactions with the stolen card. Determined to catch him in the act, the mother – with her husband and three children – chased down the offender and cornered him after a chase through a shopping mall. Ms Kobylarz realised the card was missing when she was buying gr…