Former Republican House Speaker Dennis Hastert dead at 84

Former Republican Rep. Dennis Hastert, who was the longest-serving GOP House Speaker, died on Monday at the age of 84.

Hastert also underwent sex offender treatment, two years of supervised release after his time behind bars and paid a $250,000 fine to a crime victims fund.

Hastert pleaded guilty in the case to attempting to pay $3.5 million to an unnamed individual to keep the alleged sexual abuse a secret.

Before he sentenced Hastert, Judge Thomas M. Durkin described the then-74-year-old Illinois Republican as a "serial child molester," and that "accusing Individual A of extorting you was unconscionable."

Multiple alleged victims and their family members read victim impact statements prior to Hastert's sentencing.

Assistant U.S. Attorney Steven Block called Hastert's conduct "horrendous." But because of the statute of limitations, Hastert could only be charged with a financial crime related to the payments he was making to one of at least four victims of sexual abuse.

Block said the sentence should take into account that Hastert "continues to deny what should now be obvious to everyone," that the payments were to conceal sexual abuse.

Defense attorney Thomas Green said he "acknowledges and respects" the pain of the man who described being molested as a teenager. He urged the judge to take into consideration the "entire arc" of Hastert's life, asserting that he reshaped his life as a public servant during his political career.

The Associated Press contributed to this report.