Well, Perry's not going to advertise on TV that he colluded with special interests to kill a reform measure.
Keep in mind, that a Repub governor has total control of a Repub legislature. He can do a lot of harm to them if they go against his wishes.
Apparently here---the legislature WAS doing Perry's wishes------ by killing the bill.
=============================================
Here's a clue: find out who was lobbying against the reform measure---then check and see what govt goody Perry rewarded the lobbyists with:
Appointments to choice committees? Their own govt agency? Grant$$ from the governor's office? Lucrative govt contracts? A policy change in Austin that benefitted someone's special interest?
You might also check legislators' campaign contributions --- that's a Big Clue as to who was colluding with who.