Crime Wisc. Man Accused of Murdering His Ex Is Found and Arrested in Illinois After Monthslong Search The sheriff's office claims a confidential informant helped them track down 30-year-old Christopher Anderson By Chris Harris Chris Harris Twitter Chris Harris has been a senior true crime reporter for PEOPLE since late 2015. An award-winning journalist who has worked for Rolling Stone and MTV News, Chris enjoys prog rock, cycling, Marvel movies, IPAs, and roller coasters. People Editorial Guidelines Published on September 9, 2021 10:17 AM Share Tweet Pin Email Hannah Miller and Christopher Anderson. Photo: Oneida County Sheriff's Department Authorities in Illinois have detained Christopher Anderson, a Wisconsin man who has been on the run for months after allegedly killing his ex-girlfriend and the mother of his child. Anderson, 30, has long been a suspect in the death of Hannah Miller, and was wanted on a first-degree homicide warrant. The 26-year-old Rhinelander woman was found fatally shot on June 30. Miller's body had been left along the side of a road, according to the Oneida County Sheriff's Office. Anderson was located Tuesday afternoon in Carol Stream, Ill., a police statement confirms. The sheriff's office claims a confidential informant helped them track down Anderson. Search Continues for Wisc. Man Who Allegedly Recruited Friend's Help in Murdering His Ex Anderson will soon be extradited to Oneida County. Sheriff Grady Hartman thanked the community in a statement, and for those who donated to a reward fund. Miller's death was likely a domestic abuse homicide, authorities have said. Miller and Anderson had been in a relationship for several years but had recently broken up. On June 2, Miller called police to report that Anderson had taken her vehicle and would not give it back. At that time, she also said she was afraid Anderson would kill her. In June, police arrested Seth Wakefield, 24, of Rhinelander in connection to Miller's death. Wakefield is charged with first-degree intentional homicide as a party to a crime. Want to keep up with the latest crime coverage? Sign up for PEOPLE's free True Crime newsletter for breaking crime news, ongoing trial coverage and details of intriguing unsolved cases. Wakefield has not yet entered a plea and his public defender did not immediately respond to PEOPLE's request for comment. Anderson has also not plead to the charge against him, and it was unclear if he had a lawyer who could comment on his behalf. If you are experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-7233, or go to thehotline.org1-800-799-7233, or go to thehotline.org. All calls are toll-free and confidential. The hotline is available 24/7 in more than 170 languages.