Knifepoint. New tonight, how police say a woman tried to get away from her attacker after a runin at a mall. And no more doubt about the severe effects of the zika virus in unborn children. Criminals using social media to brag about and document their crimes. According to police, one recent example involved the death of a Prince Georges County police officer. New at 11, news4s Jackie Bensen talked to the prosecutor about the twisted ways the bad guys are using the web. Reporter the shocking information was revealed in court today. Last months horrific ambush of the Prince Georges County Police District 3 station that left 28yearold officer jakai dawson dead was supposed to make michael ford an internet sensation. Ford had asked his two brothers, now codefendants, planned, but failed, suicide by cop on his cell phone and send it to the website. We caught up with states attorney on social media dangers at a Laurel High School tonight. She claims her office is seeing an increasing number