Gov. Deval Patrick pulled the plug on a planned UMass speech by a convicted terrorist yesterday after a plea delivered by the Herald from the outraged widow of a gunned-down state trooper - angering cops who protested the event for weeks.

“It was absolutely disgusting that we had to go through what we had to go through to get this canceled,” said widow Donna Lamonaco. “Police groups have been complaining for weeks. We organized a protest.