I killed 2 so far and saw more deer this year than the previous 2 years.

The lower kill is surely a result of a combination of factors but the biggest one is that opening day was a complete washout. The many hunters that only go on opening weekend just didn't do their part this year. I personally know of at least 4 parties that sat in their motel rooms drinking all day on opening day. Their trucks were still in the lot on the second day so I suspect they weren't real effective on Sunday either.

Anybody that really wants and has the skills to kill a deer in Indiana will kill a deer.