MILWAUKEE (AP) — A woman said a man suspected of opening fire on a group of young adults, killing three, had raped her the night before in the same northern Wisconsin woods where the victims were slain.

The woman said she told her parents about the assault, and they reported it to authorities. She said officers came to her home late Thursday, mentioned the shootings that occurred earlier that day along a riverbank in the town of Niagara — near the same spot where she claimed to have been sexually assaulted — and asked her to describe her attacker.

The man, whom the woman described as a casual friend, was arrested Friday after he emerged from the woods following an all-night manhunt.

Scott J. Johnson, 38, is expected to appear in court Monday or Tuesday, Marinette County Chief deputy Jerry Sauve said Saturday. He said it wasn't yet clear if charges would be filed before that court appearance.

The dead were identified as Tiffany Pohlson, 17; Anthony Spigarelli, 18; and Bryan Mort, 19. A fourth victim, 20-year-old Daniel Louis Gordon, was wounded. All were from Michigan.