Crow's eye in the sky

He should have been disposed of quietly just like Show! Hizdahr suggested rather than go along with the Wise Master procedures of trying to publicly instill terror People asking suspicious questions about a the ordeal would have been a lot less volatile than inciting a riot.

A Public execution in this case, is similar to putting out a fire with gasoline. anyway, here are my thoughts on the episode in general

I would not have been so concerned if Dany wasn't the precious savoir of Westeros that Varys says she is. Also, that is the second time in Game of Thrones that someone was killed in the most idiotic possible manner at the command of a product of incest.

I think the real question, is will she care?