PUYALLUP, Wash. -- A local woman has been arrested for allegedly beating up and threatening to kill a sex offender who had moved into her neighborhood.

According to the document of probable cause, Level-3 sex offender William A. Baldwin had moved into his uncle's Puyallup home earlier this month. Following his move, sheriff's deputies distributed flyers around the neighborhood to alert residents of his presence.

On Monday a woman named Tammy Lee Gibson went to Baldwin's house in the 1800 block of River Road and asked for him.

When Baldwin stepped outside, she claimed she was going to kill him because Baldwin had molested her children. Gibson, who was armed with a small aluminum baseball bat, then proceeded to hit Baldwin repeatedly, the document said, leaving him with a possible broken arm.

Baldwin contacted the sheriff's department, and deputies found a woman who matched Gibson's description in the nearby Cottonwood Mobile Home Park.

Gibson admitted to police that she had confronted Baldwin and had threatened to kill him.

"Yes, I did say that. I shouldn't have done that," the document quotes her as saying. "I kept swingin' and swingin', and swingin'."

Contrary to what she had said to Baldwin, Gibson denied that Baldwin had molested her children.

Gibson was charged with assault and felony harassment on Wednesday and is being held on $15,000 bail.

During the investigation, deputies learned that Baldwin had registered under a false address following his move. He claimed his new home was in the 7900 block of River Road when it was actually in the 1800 block. Baldwin was also taken into custody for reporting false relocation information to authorities.

In 1998, Baldwin was convicted of molesting a 5-year-old girl. While on parole, he sexually assaulted another 5-year-old girl the following year, the sheriff's department said.

Baldwin is believed to be at high risk of re-offending, but was not under community supervision at the time of his arrest.