A deputy sheriff in Missouri on a car ride with his wife and 4-month-old grandchild on Monday night was nailed by a drunk driver evading police — killing the cop and his spouse, while the infant suffered serious injuries — after being struck head-on, police say.

Garrett Cleaver, 40, has been charged with second-degree murder, aggravated fleeing a stop or detention resulting in death, aggravated fleeing a stop or detention resulting in physical injury, and second-degree assault for the Monday night crash on Melton Road near Highlandville, according to the Christian County Sheriff’s Office.

Deputy Sheriff Mike Adams, 52, was riding as a passenger with his wife Ashley and their grandchild when Cleaver allegedly crossed the center line and collided with them after speeding away from a traffic stop. Police say Cleaver has previous convictions for vehicular homicide and evading police in Missouri and Kansas.

“Mike was one of those guys that no matter what the situation was, or he was asked to do, you could count on him,” said Christian County Sheriff Brad Cole in a statement Tuesday.

“This is another case where the suspect’s criminal history in multiple states reflects a failure on the part of the criminal justice system to keep a dangerous person off the streets and to protect innocent citizens,” Cole blasted Wednesday after announcing Cleaver’s arrest.

Adams, an Air Force Veteran who previously served with the Scott County Sheriff’s Office and Mississippi County Sheriff’s Office, was pronounced dead at the scene after Monday’s crash, along with his wife. Their grandchild was hospitalized with serious injuries, but is expected to survive. The collision occurred at around 8:50 p.m. while the couple was traveling eastbound on Melton Road.