Maybe you missed this part from the WSJ article:
Meanwhile, a chaotic scene was already unfolding. After leaving Michigan’s football facility, Moore returned home and grabbed a knife, the university was told. And at 4:10 p.m., police were called to investigate an alleged assault in Pittsfield Township, just south of the university’s campus in Ann Arbor, Mich.
Emergency dispatchers told police to head to an address on Ann Arbor-Saline Road, according to dispatch audio reviewed by The Wall Street Journal. The address matches one belonging to a female member of the Michigan football staff who worked closely with Moore, according to public records.
A woman at the address said that a man had entered her home and attacked her, according to the dispatch audio. The man also threatened to harm himself, according to the audio call. “He did put a knife to his throat,” a dispatcher said. The dispatcher added that the man “ran out.”
Just before 5 p.m., a dispatcher said that “S1,” referring to the man who left the Ann Arbor-Saline Road address, was at an unknown parking lot. “We are attempting to have wife contact him to try to come home,” a dispatcher says.
Police in nearby Saline assisted in detaining Moore, who was then turned over to Pittsfield Township authorities, according to a Saline official. By 8:30 p.m., Moore was booked into the Washtenaw County Jail in Ann Arbor, where he spent Wednesday and Thursday nights.
. . . allegedly