A 26-year-old Port Huron man who authorities say was involved in a robbery of a Port Huron Township bakery is in custody.  St. Clair County Sheriff deputies are reported to have responded to Aunt Millie’s Bakery Thrift Store on Lapeer Road about 5 p.m. yesterday. The bakery reported a man had come into the store demanding money and implying he had a gun. He fled the area on foot and was caught about 30 minutes later, by a detective near Ainsworth Electric heading toward the interstate.