Yes, especially Dylan did not even live in the area. Quite a "perfect" day for the perp indeed, who would also, it seems, be the ONLY person to see Dylan that day. No one seems to have seen him at all, except for the perp.
There was a story on Dateline or 48 Hour Mysteries a few years ago about a woman who was killed on her patio late at night. Her husband was the only POI. There were many things that came out that pointed directly at him, but it turned out to be some crazy cross country truck driver, and he was only caught because his last victim (a teenage girl) made enough noise for her parents to come in and catch the guy. These things happen and until I get that definitive piece of evidence or clue from LE, then all are innocent until proven guilty. JMO