Cesar Sayoc, the suspect behind a campaign of letter bombs targeting prominent Democrats, including former President Barack Obama, is expected to plead guilty next week, according to a federal court docket in New York.

Sayoc, of Aventura, Florida, was arrested in October after allegedly mass-mailing explosive devices to top Democrats, CNN and other prominent figures.

A van with windows covered in pro-Trump and anti-Democrat stickers, which was taken into custody on Oct. 26, 2018, during an investigation into a series of parcel bombs, is seen in Hollywood, Fla. on April 6, 2018.(Geo Rodriguez/Reuters) A van with windows covered in pro-Trump and anti-Democrat stickers, which was taken into custody on Oct. 26, 2018, during an investigation into a series of parcel bombs, is seen in Hollywood, Fla. on April 6, 2018.

Days after the first package was delivered, FBI investigators found a latent fingerprint from an envelope mailed to Democratic California Congresswoman Maxine Waters. The fingerprint belonged to Sayoc, FBI Director Chris Wray said in October.

Also among those to receive packages were Obama, former Vice President Joe Biden, former Secretary of State and presidential candidate Hillary Clinton, Democratic Sen. Kamala Harris of California and Democratic Sen. Cory Booker of New Jersey.

Sayoc faces 30 charges. It is unclear which charges he will plead guilty to.

Cesar Altieri Sayoc appears in Minneapolis, Minnesota, Aug. 31, 2005, in this  booking photo.(Hennepin County Sheriff's Office/Reuters) Cesar Altieri Sayoc appears in Minneapolis, Minnesota, Aug. 31, 2005, in this booking photo.