One of six men charged in an alleged plot to kidnap Michigan Gov. Gretchen Whitmer pleaded guilty Wednesday to conspiracy, admitting that the group discussed an incredible scheme to snatch her at her lakeside vacation home and destroy a bridge to slow down police.

Ty Garbin’s guilty plea is a major catch for prosecutors, only about four months after arrests were made. His testimony could strengthen the government’s case against the others and back up evidence collected by informants and undercover agents.

Garbin appeared in federal court in Grand Rapids a few hours after a plea agreement loaded with details about the operation was filed, including his pledge to fully cooperate with investigators. There was no agreement on a sentencing range, but his assistance could help him when he returns July 8.

The FBI in October said it broke up a plot to kidnap Whitmer, a Democrat, by anti-government extremists upset over coronavirus restrictions she had imposed in Michigan. Six people were charged in federal court while eight others were charged in state court with aiding them.

U.S. District Judge Robert Jonker went through a series of questions about Garbin’s rights and his willingness to plead guilty.

When the judge asked if he had second thoughts, Garbin replied: “I do not, your honor.”

In the plea agreement, Garbin, 25, of Hartland, acknowledged more than six pages of stunning allegations. He said he and others trained with weapons in Munith, Michigan, and Cambria, Wisconsin, last summer and “discussed the plan to storm the Capitol and kidnap the governor.”

The plot, he said, eventually switched to Whitmer’s second home in Antrim County.

Garbin said he “advocated waiting until after the national election, when the conspirators expected widespread civil unrest to make it easier for them to operate.”

In September, the six men trained at Garbin’s property near Luther, Michigan, constructing a “shoot house” to resemble Whitmer’s vacation home and “assaulting it with firearms,” the plea deal states.

The men also made trips to Antrim County to study the home and the area, Garbin said.

Garbin said he sent a text message to someone who turned out to be a government informant, indicating that “if the bridge goes down it will stop the wave,” a suggestion that police would be delayed in responding to a kidnapping if a nearby bridge was blown up.