Does Tiller murder presage a surge in right-wing domestic terrorism?

Here’s part of Planned Parenthood’s statement on Tiller …

Dr. Tiller was the epitome of high quality medical care underscored by deep compassion for his patients. He provided critical reproductive health care services, including abortion services to women facing some of the most difficult medical circumstances. He was continually harassed by abortion opponents for much of his career – his clinic was burned down, he was shot by a health center protestor, and he was recently targeted for investigation only to be acquitted by a jury just a few months ago. None of this stopped George Tiller from his commitment to providing women and their families with compassionate care that others were unwilling to offer.