Man arrested for pummeling patrol vehicle in Flagstaff accused of killing 5-year-old son

Posted: Updated:
Mugshot of Montrais Boyd Sr (Source: Coconino County Sheriff's Office) Mugshot of Montrais Boyd Sr (Source: Coconino County Sheriff's Office)
(Source: Arizona Department of Public Safety) (Source: Arizona Department of Public Safety)
(3TV/CBS 5) -

A man who authorities say was arrested for pummeling a patrol car in Flagstaff last summer is accused of killing his 5-year-old son in Georgia, police said. 

According CBS 46, our sister station in Georgia, officers responded to a home on Rocky Pine Drive near Lithonia at about 6:30 p.m. Wednesday. The home belongs to the boy's grandmother, police said.

[RELATED: Naked man pummels patrol vehicle with fists, car while young son in passenger seat]

Police said the boy's parents are visiting from California. The boy's mother and grandmother left to run errands Wednesday, leaving the boy with his father and the father's young siblings.

The father has been identified as 25-year-old Montrais Boyd. Detectives believe Boyd bludgeoned his son to death to the point where the child was decapitated. Boyd then buried his son in the backyard, police said.

When the boy's mother and grandmother returned to the home, they called police. The mother used her hands to frantically dig for the child's remains, police said.

"There were other children in the home as well. They are not his children. None of them are harmed. This is an isolated incident," said DeKalb County Police spokeswoman Shiera Campbell. 

Boyd was arrested in June after he attacked a patrol vehicle with his fists and his car while his son sat in the passenger seat, according to the Arizona Department of Public Safety.

On June 18, around 8:17 a.m., a trooper responded to a report of a man, identified as Montrais Boyd Sr. of Westminster, California, lying down in the median northbound along I-17 at milepost 325.

The same report advised that Boyd had been involved in a possible domestic violence situation, DPS said.

When a trooper arrived on scene, he stopped behind a black BMW sedan that was blocking traffic in one of the lanes. That is when the nude Boyd ran toward the patrol vehicle and began striking it with his fists multiple times, DPS said.

The trooper proceeded to drive away from Boyd and stopped in front of the sedan, noticing a passenger inside the BMW. The passenger was later identified as Boyd’s then 4-year-old son.

DPS said the naked Boyd entered the BMW, with his son in the passenger seat, and rammed the trooper’s vehicle numerous times.

Boyd then fled the scene in the BMW, driving the wrong way in the southbound lanes of the I-17 for over a mile, before losing control of the vehicle. Boyd traveled into the shoulder, re-entered the southbound lanes and then back into the northbound lanes, DPS said.

The trooper was incapable of pursuing the vehicle after it was disabled from the repeated impacts it received by the BMW. Unable to keep up with the vehicle, the trooper lost sight of the BMW around northbound milepost 329.

According to DPS, the BMW ran into a rock embankment and rolled over at milepost 331. Boyd was taken into custody without further incident.

Boyd and his son were transported to the Flagstaff Medical Center for minor bruises and abrasions. They were both treated and released, DPS said.

The Arizona Department of Child Safety was called to assist with the investigation, DPS said. The young boy was reunited with the mother at the hospital.

Boyd was booked into Coconino County jail for aggravated assault with a dangerous instrument, felony endangerment, child abuse and criminal damage charges.

A police chaplain responded to the scene in Georgia to help officers and the victim's family members cope with the tragedy.

Click/tap here to download the free azfamily mobile app.

Copyright 2018 KPHO/KTVK (KPHO Broadcasting Corporation). All rights reserved.