Please don't take this as me saying that JBC - what we know of him anyway - is not a good possible fit for the Delphi crime. I think his physical appearance is consistent with the video, his known crime makes him capable, and he's in the proximity where he could have known about the bridge and the trail. So let's hope he's the one.
However - if you think he's the only man with that general height and weight, in that age range, in that general area, who has already done a similar crime of criminal confinement/kidnapping and sexual battery/rape/child molesting, you're not facing the facts, unfortunately.
Howard County, Indiana (Kokomo, etc) has 186 sex offenders, Tippecanoe County (Lafayette, etc) has over 200, and Carroll County has at least 42. Scroll through their profiles and even if you ONLY look at the ones classified as sexually violent predators, you will see plenty of men convicted of pretty similar crimes to what JBC did. I just did a basic scroll and most sexually violent offenders in that part of Indiana have been classified that way due to their crimes of child molestation (the same crime JBC is charged with - which includes forcible intercourse with a child).
And these are just the offenders who have already been caught.
So let's not get tunnel vision. Great as it would be to think there's only one monster like JBC responsible for all these cases we'd like to see resolved, it's just not reality.