I have prayed many times for Michael Schiavo, Greer and Felos. Their fates are far worse than Terri's was if they don't repent. Jesus shed his blood for them as much as He did for us. I cannot imagine being without Him. While we do reap what we sow, God is also merciful. Jesus died to save their souls from eternal damnation. I will continue to pray for them that they seek Jesus for themselves.
I have prayed for such people before. Prayers will not be answered if they are for people who reject GOD in their own lives at any level. Put your prayers in reserve for more deserving people. Make your prayers mean something to Jesus. HE is a very busy guy. I have an open application to help HIM out when I'm done toiling around here:)