The Minnesota man who pleaded guilty to assassinating a top Democratic lawmaker and attempting to murder another has been sentenced to life in federal prison, 13 months after he disguised himself as a police officer and attacked the legislators at their homes.

Vance Boelter has received two life sentences for killing former state House Speaker Melissa Hortman and her husband, Mark.

The Minnesota man who pleaded guilty to killing a top Democratic state lawmaker and her husband is due to be sentenced in federal court