Terrorist: a person who terrorizes or frightens others.

        Terrorism: The unlawful use or threatened use of force or violence by a person or an organized group against people or property with the intention of intimidating or coercing societies or governments, often for ideological or political reasons.

I have no problem calling Dr. Tiller's murderer a terrorist, that his act included assassination only furthers the argument...any doctor who provides women a right to choose will now be even more terrorized due to this killing.