Suspect's vehicle found in Sibley County as search intensifies for Vance Luther Boelter, wanted in connection with fatal shooting of Minnesota lawmakers in targeted attack.

Investigators found a cowboy hat near the vehicle and were working to determine whether it belongs to Boelter.

Residents of Sibley County are encouraged to lock their doors and secure their vehicles, adding that law enforcement will be going to area residences to ask to search properties.

Boelter claimed to have a doctorate of education, and said he spent extensive time in the Democratic Republic of the Congo in Africa — where he was seen in videos apparently preaching on stage.

A cryptic message sent to roommates is just one of many unanswered questions surrounding the suspect who remains at large.

Maple Grove Police Department on Sunday issued a shelter-in-place for residents, without giving specifics. This comes as authorities are rampantly searching for Vance Boelter, who shot two Minnesota lawmakers, killing one. At a press conference earlier in the day, authorities confirmed that the suspect is not in custody and is believed to be alive.

Suspected assassin Vance Boelter fronted a security firm his best friend said never existed and experienced “struggles” after returning from a three-year trip to Africa months before he allegedly turned his gun on a pair of Minnesota lawmakers and their spouses.

The wife of Vance Boelter, who is suspected in the Minnesota lawmaker shootings, was in a vehicle that was pulled over by law enforcement on Saturday. Passports and cash were found in the vehicle.

The Minnesota Bureau of Criminal Apprehension reports that Boelter was last seen on Saturday morning in Minneapolis, after the shootings, wearing a light-colored cowboy hat, a dark long-sleeve shirt, and light pants while carrying a dark cross-body bag.

Minnesota BCA says the search for Vance Boelter has taken them to Sibley County, just southwest of the Twin Cities. This morning they found a vehicle and a cowboy hat that they believe is tied to Boelter.