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The issue of the knife being in his hand or not is still an issue. but whether the knife is in his hand or not, there's an issue as to whether or not his aggression had stopped. that's the issue. did his aggression stop whereby officers should not have used that lethal force? >> that's the big question. clearly in that first video, he has his hands up and the officer shoots. playing on the other side of this what the officers would say is state of mind. we had reason to believe he was a threat based on how he lunged at them with this knife, the butt of the knife and hit one of the officers wit...

Here's jeanne moos with tonight's money and power. >> reporter: he arrives on his own chop r. he arrives on his own plane. but this was perhaps donald trump's most celebrated arrival -- when he escalated himself into the presidential race. it is the most momentous announcement in your entire career. i want to come in on an escalator. hey, only losers walk. presidents take stairforce one. >> reporter: the escalator's twitter account tweeted, the ego has landed. using an escalator. some one added elevator music to the escalator video and made a ten-minute loop. even homer simpson rode the else s...

Fitting that description within the time frame of the murder. >> detective, it has been nearly four days since this shooting. maybe there will be some big leads from these videos. we don't know yet. do you have any doubts whatsoever that you are looking for the right people here, these two white men and one black man? >> we don't have any doubts at this point. lieutenant gliniewicz when he made the description, which is very standard protocol when you are a police officer is calling out with any suspicious person, he called out the sex and race of the individuals. that was one of his last tran...