Here's just one of them. Sorry I don't know how to hotlink.
http://hosted.ap.org/dynamic/stories/C/CYC_ARMSTRONG_DOPING?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2012-10-10-18-54-53
I couldn’t care less what evidence that you think is against him. It is simply not the governments job to pronounce him guilty without trial. That is abuse of power and unconstitutional. If he is guilty of a crime then charge him, otherwise the government is to shut up. Bills of Attainder are not constitutional.
If you think he is guilty then you are entitled to your opintion but supporting abuse of power through Bills of Attainder is not a conservative value.