A man accused of opening fire on a 4 July parade near Chicago contemplated a second attack on the day of the deadly shooting, authorities have said.
According to police, the 21-year-old suspect drove to Wisconsin after the shooting, which left seven dead and dozens wounded.
There, he saw another Independence Day celebration and allegedly considered attacking it.
During a court hearing, prosecutors also said he confessed to the shooting.
At yesterday’s court appearance, a judge ruled that the suspect, Robert Crimo, will be held without bail and assigned a public attorney.
At a news conference following the hearing, police said that investigators have determined that Mr Crimo attempted to dump his phone in Madison after the Monday morning mass shooting in Highland Park, a Chicago suburb.
Police have said the gunman told them he disguised himself as a woman so he could escape Highland Park alongside fleeing residents.
In the brief hearing, Assistant State Attorney Ben Dillon said that surveillance video shows the suspect leaving the area and dumping a rifle.
Police say he then went to his mother’s home and took her car.