A trail of blood led cops to a man and woman who stabbed a teen over an iPhone, police said.
Victor Montalvo, 22, and Maritza Lopez, 21, were charged with attempted murder after they allegedly stole the phone from Alexander Herald, 19, on a 4 train early Saturday, and knifed him when he tried to get it back at the Fordham Road station. He was critically hurt.
Montalvo cut his hand in the attack, leaving the blood trail that gave the duo up later that night, cops said.