A candlelight vigil in remembrance of Rep. Melissa Hortman and Mark Hortman will be held Wednesday on the steps of the State Capitol after the couple was slain in what authorities are calling a political assassination in their Brooklyn Park home.

Accused Minnesota assassin Vance Boelter's alleged plan to kill more politicians on his target list was foiled by a police sergeant's proactive hunch, and his capture came after he made a big misstep that exposed his whereabouts to an eagle-eyed neighbor, authorities said.

The children of Melissa Hortman and her husband Mark Hortman are speaking out on their parents' murders. “They were the bright lights at the center of our lives, and we can’t believe they are gone," Sophie and Colin Hortman wrote in a statement obtained by PEOPLE Monday.

Early Saturday morning, Minnesota House Speaker Emerita Melissa Hortman and her husband, Mark, were assassinated in their home.

"The best way to honor our parents' memory is to do something, whether big or small, to make our community just a little better for someone else.”

When a longtime Minnesota lawmaker died after a battle with ALS, former state House Speaker Melissa Hortman helped pass historic legislation in search of a cure.

Minneapolis mourns the assassination of Speaker Hortman and husband; city emphasizes democracy, safety, and community events.

Gov. Tim Walz called the event a “politically motivated assassination," with the attack marking the latest such incident over the last several years.