Isaiah J. Van followed the woman into a shopping center in West Whiteland after some type of altercation on the road around 5:50 p.m. June 11, West Whiteland Det. Scott Pezick said.
That's where Van brandished a 12-inch, black handle fixed-blade knife, which was recovered by police, Pezick said.
The woman was unharmed.
Van was arrested and charged with simple assault, possessing instruments of crime, terroristic threats and harassment.
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