Police release sketch of predator

April 1, 2008 8:33:57 PM PDT
Police in Manhattan are searching for a predator who allegedly tried to sexually assault a 12-year-old girl at knifepoint.Police have released a sketch of the man.

Investigators say he followed the girl into an apartment building in Washington Heights last week. He apparently held her at knifepoint and demanded that she remove her clothes.

A passerby interupted the assault, and the suspect ran away.