Aaron Dean Trial: Prosecutor asks jurors to hold ex-officer accountable in closing arguments (Part 1)

Watch the state's full closing arguments in the trial for former Fort Worth officer Aaron Dean, who is accused of murdering Atatiana Jefferson. Prosecutors argued self-defense only applies if someone reasonably believes the deadly force is immediately necessary to protect against the other person's unlawful deadly force. "What has been unlawful about what Atatiana did?"