Parler, Telegram erupt with violent threats ahead of Trump’s rally against 2020 election - The Washington Post

"You have what disinformation researchers have worried about for years, which is people becoming motivated to action by lies," said Joan Donovan, the research director at Harvard Kennedy School's Shorenstein Center on Media, Politics and Public Policy.
https://www.washingtonpost.com/technology/2021/01/05/parler-telegram-violence-dc-protests/