US police have found a 'hit list' of names after they confronted the man who shot and killed Democrat Melissa Hortman and her husband in the state of Minnesota.

US correspondent Richard Arnold told Mike Hosking that the 57-year-old suspect got away - but police were able to search his vehicle.

He says they found a papers listing around 70 names of other targets - as well as anti-abortion material. 

The gunman had also shot another Democratic senator and his wife in their home - they both survived.