Prosecutors in Montgomery County showed the video at a court hearing Tuesday for Angela Stith's ex-boyfriend, who is charged with her murder.
The video showed a man, authorities say was Lawrence Crawley smash the window of Stith's car as she sat in the parking lot of a security company in Whitemarsh Township early on the morning of August 3.
Stith tried to run but was caught by her attacker and stabbed repeatedly. The video also showed an SUV running her over as co-workers rushed to try to help.
Crawley was arrested by state troopers in Somerset County several hours later.
He is being held without bail pending trial.
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