Gilbert, Representative Melissa Hortman’s dog, is being honored at the State Capitol with Ms. Hortman and her husband, Mark. They were all killed in a shooting at their home this month.

© Jenn Ackerman for The New York Times

The man is accused of killing State Representative Melissa Hortman and her husband, Mark, as well as wounding another Democratic lawmaker and his wife.

An F.B.I. agent said Vance Boelter left instructions for his wife in the event of a calamity, according to a court document.

© Jenn Ackerman for The New York Times

Both state and federal officials are pursuing murder charges against a man they say killed a state lawmaker and her husband. A federal case could lead to the death penalty.

© Tim Gruber for The New York Times

Colleagues described Representative Melissa Hortman as a skilled, conciliatory lawmaker who was at once steely and warm.

© Tim Gruber for The New York Times

The suspect, Vance Boelter, was appointed more than once to the Workforce Development Board, where he served with State Senator John A. Hoffman, who was shot on Saturday.

A Minnesota state representative and her husband were killed early Saturday, and a state senator and his wife were injured.