From Emes L’Yaakov on Shulchan Aruch (Orach Chaim Simman 116:1) note 145
Question: Should one daven in Refaenu for a person who is in prison for the crime of murder, since Lich’orah he is sick?
Answer: Certainly not, because he is not sick rather he is a criminal.
And we must fight against this attitude that all sins of a person are because of sickness, rather it all stems from a lack of Yir’as Shamayim, and the proof is that in front of people he would not do what he did, he just has no fear of the Ribbono Shel Olam.
[And perhaps one should daven for him in Hashivenu…]