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PITTSBURGH (KDKA) — The man charged with assaulting a woman in Wilkinsburg during a home invasion last weekend, is now also a suspect in the carjacking and assault of a woman overnight on the South Side.

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Johnny Johnson, 25, of Wilkinsburg, is now in police custody. Allegheny County officials say he was arrested by state police during a traffic stop on Route 28.

(Source: Allegheny County)

He is being held on charges related to the home invasion. Those charges include aggravated assault, robbery, unlawful restraint of a minor and false imprisonment.

Police say he tied up and pistol whipped a grandmother, in an apartment on Wood Street in Wilkinsburg. He’s also accused of sexually assaulted her grandchild at knifepoint.

Now, he’s also the suspect in a violent carjacking where another woman was attacked.

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The victim ended up in the rear of the Giant Eagle shopping plaza off of Wharton Street in the South Side Flats late Wednesday night.

Police say the woman picked up the suspect, who police say she knew, around 6 p.m. on Fifth Avenue, in the Soho area of the city. They drove to the South Side where woman was then physically assaulted at Merriman and S. 21st Streets.

She was then driven to the rear of the shopping plaza, and thrown out of the car. Police say she walked to the Giant Eagle and called 911 for help.

The victim’s injuries appeared to be consistent with being pistol whipped, officials said. She was being treated at UPMC Mercy Hospital.

Johnson was reportedly driving the victim’s car when he was stopped on Route 28. He is being held in the Allegheny County Jail.

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Stay with KDKA for the latest on this developing story.