possible. but not very likely. I knew Dan personally and intoxicated or not, I don't believe he would've just 'fallen in'.
I've been doing some digging and it looks like Matt Kruziki (another Smiley Face Killer case) was last seen on the same street, Sinsiniwa Ave, where Dan was supposed to have been heading. Sinsiniwa is also a very prevalent theme in the SFK crimes. Something to do with the crimes being done on Chippewa owned-ground? Not sure how much of that I buy... but the rest is giving me chills. I live in Dubuque, and used to frequent both of these bars...