Assertion: beck's colleague | /r/CapableOf | betray in many cases
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text: Colleagues and underlings interviewed by The Daily Beast—on condition of anonymity out of fear of retribution—describe Beck’s irresistible personal magnetism and undeniable brilliance that one called “mad genius,” mixed with a colossal streak of narcissism, neediness and, above all, capriciousness that have left them feeling whipsawed and, in many cases, betrayed.