It was about 2 p.m. on a Thursday in May when Mitch Carroll pulled up to an apartment building with teal trim in Madison County, Ind.
He was wearing jeans, a T-shirt and pristine white sneakers. But to the middle-aged woman who opened the door, it was obvious he was in law enforcement. He had a badge and a Glock 9 mm pistol at his waist.
“Hi, you Sharon?” Carroll asked.