DePape is said to have posted a number of mainstream and fringe conspiracy theories online, including that the 2020 election was stolen
from President Donald Trump, climate change denial, COVID-19 vaccine and mask skepticism, and other narratives associated with QAnon.
According to reports citing a blog allegedly administered by DePape, he also promoted a conspiratorial narrative blaming Jewish people for Russia's war in Ukraine, claiming the events are orchestrated as part of a scheme "for Jews to buy land."
Some relatives have since verified the contents of DePape's since-deleted Facebook page, which included posts discussing widespread voter fraud in the 2020 election, posts with misinformation about the COVID-19 vaccine, and a YouTube video titled "Global Elites Plan To Take Control Of YOUR Money! (Revealed)."