Maniac randomly stabs teen near NYC City Hall before flashing eerie smile as victim left in terror

A smirking maniac randomly stabbed a college student in the neck Wednesday morning, leaving the stunned teen “bleeding out” near City Hall in Manhattan. Alan Ryvkin, 19, survived the savage assault, telling The Post that the attack unfolded while he went to court to deal with an unregistered vehicle ticket. Ryvkin said as he spoke...