When the FBI reivewed his e-mail accounts they also found in December, 2010 and January, 2011 that Aldawsari used Amazon.com to make purchases of key equipment he would need including a soldering iron, a "Chemistry Laboratory Equipment Set-All Professional", battery tester and an alarm clock. According to the FBI affadavit he allegedly purchased 3 gallons of sulpheric acid via Amazon.com on Dec. 6, 2010. Aldawsari also allegedly purchased a HAZMAT suit and gas mask from individuals on eBay.
Court-approved surveillance by the FBI also revealed that Aldawsari had conducted research on dams and reservoirs in California and Colorado and had conducted research on New York City street cameras.
Aldawsari kept his alleged notes and research in e-mail files that he sent to himself in a file allegedly named, "NICE TARGETS". According to the FBI affidavit on Feb. 6, 2011 Aldawsari sent himself an e-mail titled "Tyrant's House" which listed the address of former President George W. Bush.
Assistant Attorney General for the National Security Division David Kris said in a statement,. "Aldawsari purchased ingredients to construct an explosive device and was actively researching potential targets in the United States. Thanks to the efforts of many agents, analysts and prosecutors, this plot was thwarted before it could advance further."
Aldawsari is expected to have an initial appearance at the U.S. District Court in Lubbock on Friday. He could face a maximum penalty of life in prison if he is convicted on the charges. An attorney for Aldawsari could not immediately be contacted.