HARROWING new details have emerged in the case of an abandoned baby who was discovered just hours before four people were found dead. 

A seven-month-old girl was found strapped in a car seat on a random driveway in rural Tennessee on Tuesday, sparking mystery. 

The infant was discovered in Tigrett, approximately 80 miles from Memphis. However, in a distressing twist, the bodies of her parents, James “Matthew” Wilson, 21, and Adrianna Williams, 20, were found deceased in the nearby woods.

Wilson and Williams’ remains were discovered in Tiptonville, which is around 40 miles north of Tigrett. 

But, the baby’s grandma, Cortney Rose, 38, and its uncle Braydon Williams, 15, were also found dead, heightening the mystery further. 

A homicide probe is underway as cops hunt for the person or people responsible.

The bodies were found near Reelfoot Lake – an area that is popular for fishing and boating.

The baby was found on the driveway at around 3pm local time but hours later, a 911 call was made, as reported by the NBC affiliate WMC-TV.

In the grainy audio, Rose and her daughter were reported missing. 

And, the person who made the call just before 10:30pm was searching a home with a flashlight.

At this time, it’s not sure what link the 911 call has to the case of the abandoned baby and relatives deaths.

The baby was taken to the hospital after it was found on the driveway.

The heat index in Tigrett had reached 113 degrees in the afternoon the baby was abandoned.

Cops revealed they were probing a car that they suspect dropped off the car.

They identified it as a dark minivan or a white SUV-type motor.

But, police do not know who dropped the child off in the first place.

Investigators said they wanted to speak with Rose, Williams, and James Wilson before they were later found dead.

After confirming the identities of the victims, cops are trying to catch the suspect or suspects believed to have killed the four people.

Jeff Box, the Dyer County Sheriff, has vowed to uncover the truth behind the mystery.

Dyer County officials suggest the relatives death were not random. 

Tennessee Bureau of Investigation officials are still probing the cause behind the relatives’ deaths.

Friends have spoken fondly about Adrianna and her partner. 

“Adrianna was the sweetest person, she loved being a mama,” Amy Anderson told WREG-TV.

She also described Wilson as a “wonderful daddy.”

Locals who live close to the Reelfoot Lake have also spoken of their horror. 

“It makes me sick, yeah it does,” William Thomas, who has nine grandchildren, told the CBS affiliate KFVS-TV.

Melissa Peal, who has lived in the Tiptonville area for 40 years, was left equally horrified.

“To know murders come down here, it’s scary,” she told WMC.

“They need to be found. I mean whoever did this. I mean… this is bad for this community.”

She knew something was not quite right when she spotted cop cars swarming in on the area.

Kim Wheeler-Elder, the TBI public information officer, urged the public to come forward with any information about potential suspects.

“There’s always concern when there is a suspect or suspects we have not caught yet,” she told reporters.