Oltmann's twitter account was taken down in the 15th as he was exposing Eric Coomer of Dominion.
Here is a lot of his digz riposted on The Geller Report.
https://gellerreport.com/2020/11/report-anti-trump-dominion-voting-systems-security-chief-was-participating-in-antifa-calls-posted-antifa-manifesto-letter-to-trump-online.html/