A criminal complaint alleges that Justin Olsen of Boardman, just south of Youngstown, discussed the 1993 Waco siege on iFunny, a mobile app for memes and funny images, in June.
He blamed the Bureau of Alcohol, Tobacco, Firearms and Explosives for the deaths of scores of people living at the site, the complaint filed by an FBI agent says.
"In conclusion, shoot every federal agent on sight," Olsen wrote at the end of the discussion, the complaint says.
The FBI went to Olsen's house last Wednesday, where they found 15 long guns, 10 pistols, about 10,000 rounds of ammunition and camouflage clothes.
Olsen waived a reading of the charges in court Monday. He was not asked to enter a plea and is scheduled to appear in court again Friday for a bail hearing.
CNN reached out to his attorney Ross T. Smith but did not receive a reply.
The criminal complaint said the investigation into Olsen began in February, when FBI agents in Alaska began looking into posts from user ArmyOfChrist that voiced support for mass shootings and the Planned Parenthood targeting. Agents subpoenaed iFunny for information about the subscriber and received a Gmail address. The FBI subpoenaed Google, which they said linked the account to Olsen.
In the complaint, an FBI agent writes that Olsen said his online comments were a joke and referred to it as a "hyperbolic conclusion based on the results of the Waco saw … where the ATF slaughtered families. "
In February 1
The incident prompted a seven-week stalemate, eventually leading to a fire and the deaths of 76 Davidians, including their leader, David Koresh.