Saw it on World News Tonight.
At a news conference last week, Mike Freeman, the Hennepin County attorney, did not specify which service investigators had used, but said that “it was a genealogy company you see advertised on TV.”
A break came last year, when investigators entered DNA from the crime scene into genealogy websites and identified two possible suspects. One of the suspects, Mr. Westrom, had lived in the Twin Cities area in the early 1990s and had been convicted of soliciting prostitution in 2016, the probable cause statement said.