What I wonder is, did the suspects even know that Tim Bosma's wife saw them when they arrived for the test drive? She saw them, but that does not mean that they knew she saw them, perhaps she saw from inside the house and they did not see her. That could happen at my house. Tim could have popped in the house for something before leaving on the test drive, that would be when he told his wife that they were from Toronto and he would be right back. If they did not know that she had seen them, that could explain why they were not being very careful about anything. She called the police when her husband did not come back and gave a description of the two suspects. It was her description of the two guys she saw, that caused the other guy that took them on a test drive of his truck to come forward with the information about the tattoo. While it was the tattoo that got DM caught, without the wife's description of the two men, we may have never found out about the tattoo.