A Florida man who claimed in online forums to have inspired terrorists in Australia and Texas was arrested after telling an informant how to build a homemade bomb to attack a 9/11 memorial in Missouri, according to a criminal complaint, reports the Associated Press .

Joshua Ryne Goldberg, 20, was arrested and charged with distributing information relating to explosives, destructive devices and weapons of mass destruction, the U.S. Attorney's Office said Thursday.

Goldberg — of Orange Park, about 15 miles south of Jacksonville — began communicating online with an FBI informant in July, giving information on how to build a bomb using a pressure cooker and shrapnel dipped in rat poison, according to the complaint. Goldberg instructed the informant to place the bomb at a memorial in Kansas City, Missouri, commemorating the 14th anniversary of the September 11, 2001, attacks, the complaint says. No bomb was produced.

The complaint quotes the suspect as telling the informant: "Get FAR away from the bomb, brother. There's going to be chaos when it goes off. Shrapnel, blood and panicking ..."

Goldberg admitted under questioning that he had provided the informant with bomb-making information and used the online aliases associated with their conversations, according to the complaint. Goldberg told agents that he believed the instructions would create a working bomb.

However, Goldberg claimed that he didn't intend for the Missouri attack to be carried out.