While I was watching the debate of Republicans last night, Rick Perry got a huge round of applause when it was stated that Texas is the top state for having convicts executed. He defended it and was rather proud of his record of signing off on so many executions.

Where exactly does capital punishment fit in with the Republican view on pro-life?

If someone points to the Bible and the Ten Commandments, it says you shall not kill. The religion route does not work for either of these situations.
It would be not killing at all; not well, it is okay for certain situations and not others.

Please explain the viewpoint of the Republican of how capital punishment is a feat to be applauded but an abortion is not acceptable. Thanks.