Transcript for Ferguson Police Officer Darren Wilson Resigns
9 police officer who shot and killed an unarmed teen has quit the department. Officer Darren Wilson's letter of resignation says he doesn't want to put the residents and police department at risk so he is stepping down and Alex Perez is on the story for us in Ferguson this morning. Good morning, Alex. Reporter: Good morning, Paula. Protesters have been demanding Wilson resign since this ordeal began last August. Wilson says he's afraid if he stayed on the force he would become too much of a target. Shut it down. Reporter: Overnight ABC news learned officer Darren Wilson is officially resigning from the Ferguson police department. A job Wilson told George stephanopoulos he loved in our exclusive interview last week. You love being a police officer. I love it. Reporter: In this resignation letter Wilson cites safety concerns and the widespread unrest in the five days since a grand jury declined to indict him in the shooting death of unarmed black teenager Michael brown on August 19 O 9th. No probable cause exists to file any charge against officer Wilson. Reporter: Wilson writing, I have been told that my continued employment may put the residents and police officers of the city of Ferguson at risk, which is a circumstance that I cannot allow. Those same concerns looming over Wilson during the interview. I greatly enjoyed working in Ferguson, I did. Put that in the past tense. Not going to happen again. I mean, you think they would accept me. You think it would be safe for me? Reporter: Overnight demonstrators in Ferguson once again protesting outside the police station. I believe he should have resigned. Reporter: And as police arrest a handful of demonstrators nationwide since Friday Wilson hoping leaving the force will alleviate the tension here in Ferguson. He writes "It is my hope that my resignation will allow the community to heal." Are you still scared? Of course. What's your biggest worry. Someone hurting my family or another officer getting hurt. Reporter: He hopes to return to police work. That future, now unclear. Because the grand jury ruled a decision doesn't mean everything is over. Reporter: The justice department is conducting a civil rights investigation into the shooting. And overnight protests over the weekend have been loud but mostly peaceful. Just two arrested last night. Dan. Alex Perez once again on the ground. We appreciate it. Let's bring in chief global affairs correspondent Martha Raddatz in Washington. She's going to be hosting "This week" later this morning. Martha, as Alex just mentioned the feds are still investigating the case. What kind of charges could they bring and when might this happen? Well, the federal rights investigation was begun in August and attorney general holder says it will continue. They would have to show that officer Wilson singled out brown because of his race and purposely violated his civil rights. But holder said the investigation is at a mature stage and the grand jury findings will have no impact on it. There's also, Dan, a separate investigation into the Ferguson police department and some of its practices, so perhaps all of that pretty soon. Yes, as you say at a mature stage and, Martha, thank you. A reminder Martha has a big show. She'll have the latest on Ferguson and much more coming up later this morning on "This week" right here on ABC.
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