Suspected of killing deputy and shooting Senator in the USA is still on the run

Minnesota officials continue to seek for the suspect of killing state deputy and US senator yesterday. A national arrest warrant was issued, according to local police. Search is over 37 hours.
What happened
Vance Boelter, 57, has been on the run since 3:35 (local time) on Saturday, when he clashed with police officers. Police found him at the house of state deputy Democrat Melissa Hortman, who was murdered with her husband. There was exchange of fire, but he managed to escape.
Two hours earlier, there was a police call at the house of Democratic Senator John Hoffman. He and his wife, Yvette Hoffman, were shot, underwent surgery and remain stable.