That's a disgusting picture. He probably skipped it because the measure had more than enough votes to advance. The other lawmakers showed up because there wasn't a quorum, since some legislators did not allow it to be passed by unanimous consent.
Listen, the guy is running as a HUGE pro-lifer, yet this vote, probably one of THE most important pro-lifes because of the critical nature of the situation, wasn't enough motivation for him to cast a vote. Unless he was in the hospital I find the no vote inexcusable. Sorry if that offends you.