I'm still here LOL! Work got in the way :(
Thank you all for the additional information. Based on what you all have told me and the add'l info I've read it appears that it was a combo of a poor dechlorinator and possibly temperature shock. His gills did look inflammed and was kind of twitchy in his behavoir, which was totally out of character.
I will definately look into using Prime in the future. I also have the API master water test kit, but noticed last night that it doesn't have a solution to test for chlorine/chlorimine. Any recommendations on additional water testing apperatus? I would like to continue to use tap water.
I did clean out the bowl with hot water and threw out the gravel and silk plant that was in there. In the event I use the bowl again I figured best to start over. I did find a 5 gallon tank at Walmart that was reasonably priced which included a filter and heater, so I will most likely go that route for my next Betta.
Thank you all again for your help