Manassas police need your help finding a man who attacked a woman along a trail.
A 21-year-old woman told police, a man struck her from behind while she was walking near Seymour Road Tuesday night.
He knocked her to the ground but she managed to fight him off.
The man ran away before police got there.
The woman gave officers enough of a description for them to create this composite sketch.
If you can help with this case, you're asked to contact Manassas police.