A notorious professional protester with past ties to multiple controversial anti-Israel efforts was spotted among the rioters who broke into a Columbia University building and occupied it this week‚ according to police. Lisa Fithian‚ 63‚ was captured in footage taken outside Hamilton Hall — an academic building on the Ivy League’s Morningside Heights campus that protesters‚ some of them masked‚ stormed the around 12:30 a.m. on Tuesday. A lifelong agitator‚ Fithian in the mid-2010s was...