"I'm going to be gone for a while. May be dead shortly, so I just want to let you know I love you guys both and I wish it hadn't gone this way," he wrote in messages viewed by AP.
On Sunday, U.S. Sen. Amy Klobuchar shared a statement from Yvette Hoffman expressing appreciation for the outpouring of public support.
"John is enduring many surgeries right now and is closer every hour to being out of the woods," Yvette Hoffman said in a text that Klobuchar posted on social media. "He took 9 bullet hits. I took 8 and we are both incredibly lucky to be alive. We are gutted and devastated by the loss of Melissa and Mark."
Brightly colored flowers and small American flags were placed Sunday on the gray marbled stone of the Minnesota State Capitol along with a photo of the Hortmans.