Well then, so it's legal. And this law would apparently, due to poor wording, make it legal to kill people for doing something... legal. I'm assuming here that the whole killing of doctors bit is unintentional (call me naive if you will), so in all likelyhood it'll be fixed up now that attention has been drawn to the fact. Or just voted down if it goes up for a vote unchanged.
After all, the consequences of passing it as-is would be severe - If a group of people are legally allowed to murder another, then strictly speaking wouldn't that also allow the latter group to pre-emptively kill the former in self defense if they see them anywhere near themselves? As I recall, the US is rather permissive of deadly force when threatened, and if this bill were to pass into law then any anti-abortionist going anywhere near a person affiliated with abortion could certainly be considered threatening. Somehow, I don't see any sane politicians letting that happen, regardless of their opinions on abortion itself.