Federal and state officials are bringing multiple charges, including murder, against the suspect in the shooting of two Minnesota Democratic lawmakers.

Both were attacked this weekend, along with their spouses.

State Representative Melissa Hortman and her husband, Mark, were killed.

Today, investigators released new details about the attack and how the suspect, Vance Belter, stalked others in a burst of political violence.

William Brangham begins with this report.

It is no exaggeration to say that his crimes are the stuff of nightmares.

Today, federal officials laid out new chilling details about the attack over the weekend that killed a state lawmaker and her husband.

They say the suspect allegedly visited two other lawmakers' homes during the deadly rampage.

In the early morning hours of June 14th, Belter went to the homes of four Minnesota state politicians with the intent to kill them.

It began overnight on Friday when authorities say the suspect showed up at the home of State Senator John Hoffman and his wife,

disguised as a police officer and shot them repeatedly. They both undergone surgery and are expected to survive.

Next, officials say the suspect drove an SUV

altered to look like a police vehicle, like this one, found near his home,

to the houses of two other state lawmakers.

Neither were there.

Authorities say an officer in the town of New Hope

tried to speak with the suspect.

The New Hope police officer believed

that Belter was a police officer

who had been dispatched to the scene.

The New Hope police officer pulled up next

to Belter in his car, rolled down her window,

...