Complex sentence: Contestant supervisor Bobby Edwards was suspicious of Larson's motives when he interviewed Larson on May 19, and was unwilling to allow him on the show, but executive producer Bill Carruthers overruled him, a move he said he later regretted.
Split into simpler sentences: Contestant supervisor Bobby Edwards was suspicious of Larson's motives when he interviewed Larson on May 19, and was unwilling to allow him on the show. But executive producer Bill Carruthers overruled him, a move he said he later regretted.