 On February 4, 2003, Krugel pleaded guilty to conspiracy and weapons charges stemming from the plot, and was expected to serve up to 20 years in prison.The core of the evidence against Krugel and Rubin was in a number of conversations taped by an informant, Danny Gillis, who was hired by the men to plant the bombs but who turned to the FBI instead.According to one tape, Krugel thought the attacks would serve as "a wakeup call" to Arabs.