Protesters plan to march through Minnesota's capital city on Saturday as part of nationwide counterprogramming to President Trump's planned military parade in Washington, D.C.

Officials have expressed caution around the nationwide “No Kings” protests after two Minnesota state lawmakers and their spouses were shot early Saturday. One lawmaker and her husband died while the other two survived with severe injuries.

A man disguised as a police officer shot and killed Minnesota Rep. Melissa Hortman and her husband, and injured Sen. John Hoffman and his wife. The suspect, Vance Boelter, is still at large, and authorities found a manifesto in his car listing other potential targets.

Minnesota state Representative Melissa Hortman and her husband Mark were killed in a shooting at their home on Saturday morning.

At a glance … The final round of the US Open, the PGA Tour’s third major, gets underway this morning at Oakmont Country Club in Pennsylvania. Sam Burns has the overnight lead at 4-under. World No. 1 Scottie Scheffler is tied for 11th.

On the same day Melissa Hortman and her husband were murdered in a "politically-motivated" assassination, more "politically-motivated" violence occurred at peaceful protests across the country.

At least one person was critically injured Saturday in a shooting at a protest against President Donald Trump in Salt Lake City. It came hours after two Democratic lawmakers in Minnesota were shot dead by a gunman.

The Michiana Alliance for Democracy brought the No Kings protest to South Bend as part of a nationwide effort to criticize Trump’s military parade in Washington, D.C., on the 250th anniversary of the U.S. Army's founding and on Flag Day, as well as Trump's 79th birthday.