In the final moments of his life, Trayvon Martin was being hounded by a strange man on a cellphone who ran after him, cornered him and confronted him, according to the teenage girl whose call logs show she was on the phone with the 17-year-old boy in the moments before neighborhood watch volunteer George Zimmerman shot him dead.

Martin's death Feb. 26 has stirred national outrage and protests, partly prompting the U.S. Justice Department's Civil Rights Division and the FBI to open an investigation into the case.

ABC News was there exclusively as the 16-year-old girl told Martin family attorney Benjamin Crump about the last moments of the teenager's life.

"He said this man was watching him, so he put his hoodie on. He said he lost the man," Martin's friend said. "I asked Trayvon to run, and he said he was going to walk fast. I told him to run but he said he was not going to run."

Eventually he would run, said the girl, thinking that he'd managed to escape. But suddenly the strange man was back, cornering Martin.

"Trayvon said, 'What, are you following me for,' and the man said, 'What are you doing here.' Next thing I hear is somebody pushing, and somebody pushed Trayvon because the head set just fell. I called him again and he didn't answer the phone."

The line went dead. Besides screams heard on 911 calls that night as Martin and Zimmerman scuffled, those were the last words he said.

Trayvon's phone logs, also obtained exclusively by ABC News, show the conversation occurred five minutes before police first arrived on scene. The young woman's parents asked that her name not be used, and that only an attorney could ask her questions.

Martin's father, Tracey Martin, and mother, Sybrina Fulton, listened to the call along with ABC News, ashen-faced.