There are grave concerns about a missing Iowa boy who has been spotted, with his father, in metro Atlanta.

Gwinnett County police performed a traffic stop for running a red light this past Friday at the intersection of Nelson Brogdon Boulevard and Buford Highway, in Buford.

33 year old Jeremiah Johnson was the driver of the car.  Upon doing a check the officer discovered that Johnson had been reported missing from Des Moines in November and was in possession of his 5-year-old son, Johnnathan.

"Des Moines police also implied that Mr. Johnson might be homicidal or suicidal," Gwinnett Police Corporal Ed Ritter tells WSB.  "He had taken the boy during a custody dispute with the child's biological mother."

After learning Johnson's status the officer ordered him out of the car, but Johnson sped off with the boy still inside the vehicle.

The officer gave chase, but lost the car as it entered into Forsyth County.

Over the weekend, authorities in Jackson County located what they believe are all of Johnson's possessions, except for the car.

"We don't know why Johnson abandoned his items," Ritter says, "but it's thought that he might be acting on his homicidal/suicidal thoughts, or that he is trying to assume a new identity with his son and start a new life."

Gwinnett authorities have secured arrest warrants for Johnson on charges of Fleeing or Eluding Police, Obstructing Law Enforcement Officer, Reckless Driving, Cruelty to Children, Failure to Obey Traffic Control Device and Reckless Conduct.

Johnson is a white man, 5’9” and about 230 pounds with blonde hair and green eyes.

He is driving a Silver 2003 Volkswagen Passat with Iowa tag 608 ZDB.

The vehicle has a carrier attached to a hitch on the back of the car that extends out approximately three feet.  Police say there is also a large screen TV attached to the back of the front seat and there are handwritten writings on the sides of the car. One of the writings said “9/11 Veteran”.

Authorities with Gwinnett County Police Department and Des Moines, Iowa Police Department are asking for the help of the public in locating Mr. Johnson and his son, Johnnathan. Anyone with information is asked to call 911 or Gwinnett County Police at 770-515-5000.