Rahami  has been accused of using  weapons of mass destruction, bombing a place of public use, destruction of property by means of fire or explosive, and use of a destructive device during and in furtherance of a crime of violence. Criminal complaints against Rahami  had been unsealed in New York and New Jersey  on Tuesday.

Investigators believed that  Rahami planted bombs in New York City, as well as in Elizabeth and Seaside Park, N.J. One of the devices exploded in Manhattan's Chelsea neighborhood on  Saturday night. The explosion wounded 31 people.

The court filings alleged  significant premeditation by Rahami. An affidavit claimed that he began buying bomb components in June, purchasing citric acid, circuit boards, ball bearings and electric igniters on eBay.

In a statement, the online auction site said that it was "proactively working with law enforcement authorities on their investigation." The company  added, "The types of items bought by the suspect are legal to buy and sell in the United States and are widely available at online and offline stores."

In addition, video recorded two days before the bombings and recovered from a family member's phone shows Rahami igniting incendiary material in a cylinder, then shows the fuse being lighted, a loud noise and flames, followed by billowing smoke and laughter.

The court filings also included excerpts from a handwritten journal found on Rahami following his arrest on Monday. Investigators said that Rahami accused the U.S. government of "slaught[er] against the mujahidean [sic] be it Afghanistan, Iraq, Sham [Syria], Palestine ..."

The journal also lauded Anwar al-Awlaki, a U.S.-born cleric killed in a 2011 drone strike, and Nidal Hasan, the former U.S. Army major who went on a 2009 rampage at the Fort Hood military installation.

Prosecutors said that the document ends "The sounds of the bombs will be heard in the streets. Gun shots to your police. Death To Your OPPRESSION."

By Prakriti Neogi