This is a good find Shergal, the most significant article on Hart I have seen to date!
However, I read this arrest of Hart not as connected to the Wetterling abduction per se', but connected to the investigation itself. LE cast a very wide net when they were investigating Jacob's abduction - and Hart was one of the "fish" they caught. JMO.
Interesting that the article states Hart was a long-time resident of Belgrade (although originally from Paynesville), but online court records have a Hawick reference. If true, that (Belgrade) puts him 15 miles further away from Cold Spring and St. Joseph. And his place of work was near Brooten, further away still.
I believe the man that was arrested in Jared's case was from Cold Spring, not Paynesville or Belgrade.