An Air Force staffer stationed in Illinois has admitted he possessed pipe bombs that officials say he planned to unleash on local sex offenders. The Saint Louis Post-Dispatch reports 24-year old Justin Vangilder entered the pleas yesterday in East Saint Louis federal court to three felony counts of possessing an unregistered destructive device. He was arrested and charged last October while he was assigned to Scott Air Force Base. An FBI agent’s affidavit says Vangilder had three pipe bombs in his home in Shiloh. Documents say he’d told an informant he fantasized about killing child molesters and sought to “inflict as many casualties as possible.” There’s no indication Vangilder targeted anyone on the base. He is to be sentenced August 1st.