A fingerprint on the envelope containing one of the mail bombs sent to prominent Democrats nationwide, as well as DNA on two other packages, allowed officials to close in on a suspect, 56-year-old Cesar Sayoc, who was arrested yesterday morning.

Attorney General Jeff Sessions said in a press conference from Washington, D.C., that Sayoc, from Aventura, Florida, faces five federal charges and up to 48 years in prison. He confirmed the five charges are: interstate transportation of an explosive, illegal mailing of explosives, threats against former presidents and certain other persons, threatening interstate communications and assaulting federal officers. Even though Sayoc was detained in Florida, he will be prosecuted in New York City.

The official charge sheet says as well as the fingerprints, reportedly found on the suspicious package sent to California Rep. Maxine Waters, “there is a possible DNA association between a sample collected from a piece of the IED inside two of the envelopes containing IEDs and a sample previously collected from Sayoc.”

FBI Director Christopher Wray said even though Sayoc was arrested, “there may be other packages in transit now.”

Sessions cautioned that Sayoc had only been charged, not convicted, but added: “Let this be a lesson to anyone regardless of their political beliefs that we will bring the full force of law against anyone who attempts to use threats, intimidation and outright violence to further an agenda. We will find you, we will prosecute you to the fullest extent of the law.”

Sayoc, a former New Yorker who now lives in Aventura, Florida, was arrested in Florida. Several of the packages went through a U.S. postal facility in Opa-locka, which is less than 10 miles from Aventura. He was arrested at an auto parts store in Plantation.

Court records show Sayoc, an amateur bodybuilder with social media accounts that praise Trump, has a history of arrests for theft, illegal steroids possession and a 2002 charge of making a bomb threat. His 2002 arrest affidavit states that he threatened Florida Power & Light Co., claiming he would blow up their headquarters and “it would be worse than September 11th.”

Sayoc’s white van, which was plastered with stickers of Trump, the presidential seal and other political signage, including pictures of the likes of Hillary Clinton with crosshairs over them, was seized by authorities and taken to a secure facility.