Shock moment mom slams autistic son, 9, to the ground at gas station before punching witness who stepped in to save boy

THE jarring moment when an Iowa mother body-slams and punches her autistic son inside of a gas station was recorded on video by witnesses who stepped in to stop the beating.

Rejanie Morris was arrested and booked on child endangerment and assault charges for tossing her 9-year-old special needs son around like a ragdoll at a Quik Trip on Sept. 12.

The 9-year-old autistic boy is recorded "screaming for his life" as his mother pulls him up under his arms and lobs him into the Iowa gas station’s tilesCredit: KCCI

Rejanie Morris, was recorded tossing her 9-year-old special needs son around like a ragdoll back on Sept. 12Credit: KCCI

'UNHAND HIM'

"The child is screaming for his life," a Good Samaritan named Michael Lomax recalled of the terror he witnessed, before intervening to stop the mother.

"I'm like, 'Unhand him! Let him go!'"

Lomax’s fiancé, Arekya Quinn, also leaped into action and recorded a portion of the alleged assault.

In it, the mother can be seen scolding the 9-year-old boy inside the Quik Trip.

He's then shrieking in terror for help as his mother yanks him up underneath his arms and lobs him into the Iowa gas station’s tiles.

TOSSED THEN PUNCHED

A second video shows how Morris only momentarily halted her attack.

After tossing her son she was witnessed punching him in the back of the head, the television station reported.

'YOU DON'T DO THAT TO A CHILD'

"She smacked his face, and that's when I came in, and I pushed her," Quinn told KCCI.

"Like, ‘Get off of him.

"You don't do that to a child.’"

Quinn said she confronted Morris and wrestled her to the ground, striking her several times.

Des Moines Police Sgt. Paul Parizek confirmed when officers arrived, Morris was "screaming, yelling, and throwing property."

VIDEO EVIDENCE

They managed to bring Morris into custody.

It was then that they say they determined the belligerent mother had not only tossed items around but attacked her son multiple times.

"Once we were able to get her in custody and she calmed down a little bit, what we learned was that prior to our arrival - she had actually assaulted her child twice," Parizek said.