Cesar Altieri Sayoc, the man who allegedly mailed a dozen bombs to George Soros, Hillary Clinton, and other political figures, may have also had a penchant for threatening his ideological enemies on Twitter. The account @hardrock2016, which appears to belong to Sayoc, sent veiled death threats to liberal “slime scum,” including Vice President Joe Biden, former New York attorney general candidate Zephyr Teachout; actor Jim Carrey; Portland, Oregon mayor Ted Wheeler; MIT Media Lab founder Nicholas Negroponte; and New York Times journalist (and former Verge writer) Sarah Jeong.
At least one of the targets — Biden, who was threatened on September 18th — was among those who later had bombs addressed to them. At least one recipient — former...