A 74-year-old New York man was arrested Friday for violently threatening two U.S. senators over their support of Supreme Court Justice Brett Kavanaugh's confirmation.

Beginning Sept. 27, Ronald DeRisi left more than 10 threatening voicemails for two different lawmakers—who were not named— according to the official complaint released by prosecutors in the U.S. Attorney's Office for the Eastern District of New York, CNN reports.

According to the complaint, in one voicemail, he specifically threatened to shoot a senator, saying, "It's a nine millimeter. Side of your f—ing skull, you scumbag motherf—er," and then mentioning Kavanaugh at the end of the call.

In another call to the same senator, he said, "We're tired of this guy. Sucking tax payers' money! Getting a free f—ing ride! How many more years you gonna do it? None! He's a dead man! Nine millimeter, side of the f—ing head! If f—ing Kavanaugh gets in, he's dead f—ing meat! Actually, even if Kavanaugh doesn't get in, he's dead f—ing meat! Nine millimeter, side of the head, you f—ing old bastard!"

A second senator's offices provided several vulgar voicemails that also made threats over Kavanaugh, at one point saying, "I'm gonna get you."

DeRisi began leaving the messages the same day Christine Blasey Ford testified Kavanaugh sexually assaulted her when they were teenagers in the early 1980s. He denied the allegation and other uncorroborated charges of sexual misconduct from his teenaged years that went public late in the confirmation process.

DeRisi pleaded guilty in Nassau County First District Court to one count of aggravated harassment in the second degree in 2015, after calling a victim's home and office numerous times and making threats, according to the complaint.

Kavanaugh's nomination was eventually approved by the Senate after one of the most contentious Supreme Court confirmation processes in American history. He was confirmed by a narrow 50-48 vote, getting just one Democrat in support, Sen. Joe Manchin (D., W.Va.).