A suspect is in custody after Minnesota State Rep. Melissa Hortman and her husband were fatally shot Saturday, while State Sen. John Hoffman and his wife were wounded.

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.

SUSPECT CAPTURED: Vance Boelter, the suspect in the fatal shootings of a Minnesota lawmaker and her husband, as well as the woundings of another lawmaker and his wife, has been captured.

Sophie and Colin Hortman are responding to the fatal shooting of their parents, Minnesota state Rep. Melissa Hortman and Mark Hortman.

Lawmakers nationwide expressed shock and outrage over the shooting deaths of Minnesota state Rep. Melissa Hortman and her husband Mark, and the shootings of Sen. John Hoffman and his wife Yvette.

A community rattled by the murder of Minnesota House Speaker Melissa Hortman and her husband remembers their quiet acts of kindness.

Iowa politicians disavowed political violence and offered condolences to the families of two Minnesota lawmakers after a pair of shootings on June 14.

The suspect, identified by authorities as Vance Luther Boelter, posed as a law enforcement officer to gain access to the victims' homes.