Two kids were in the car with the deputy, as he drove his personal vehicle.
His blood-alcohol concentration was more than three times the legal limit, charges say.
The fire department announced the situation around 6:30 a.m. Tuesday.
The 28-year-old Ramsey man is accused of mixing prescription drugs with alcohol and marijuana.
A woman in the same car was also seriously injured.
The driver is being held on suspicion of criminal vehicular homicide.
His tenuous link to the Twin Cities is all we needed to bring you this news.