What do you think is the reason he got out of his vehicle? He obviously had a reason, because he did get out. What do you think it might have been?
Do you think he was thinking this might be his chance to shoot someone? Maybe he planned to follow him, hoped for a confrontation, so he could have an excuse to shoot him. Is that what you're thinking?
Or, maybe he took his (unpaid) "security" job a little too seriously? Maybe he saw it as his duty to figure out why someone unfamiliar/suspicious is in the gated community? Maybe he was telling the truth when he was talking to the police dispatcher about being concerned the suspicious looking person would get away before the police got there, so he decided to follow him. Maybe that's why he started running when Trayvon started running?
Seems to me that the latter explanation is much more likely to be true. Gated communities are very different from public communities. One of the main reasons people live in gated communities is for the security, and much of that security stems from treating anyone who is unfamiliar as being suspicious.
If you don't know what I mean, try putting on a hoodie and sneaking into a gated community, especially one with a security team (paid or voluntary), and see what happens. Then, when you get followed by a security guard or security watch person, try to lose him. Then, after you lose him, sneak up behind him, confront him for following you and harassing you, hit him in the face with such force that his nose breaks and he's knocked to the ground, jump on him, and start bashing his head on the sidewalk (note: a photo showing bleeding on the back of Zimmerman's head minutes after the shooting has been released).
Think you won't get shot? Wanna try it and find out?
BBM, Except that GZ was not LE...he's not a cop, so even if he did see Trayvon breaking into a car or a house, he has NO authority beyond the authority of the average citizen He had no authority to detain anyone, and in fact detaining Trayvon would have been a CRIME. So while it may be true that he thought Trayvon was suspicious, he was not empowered to legally do anything other than call LE, and following Trayvon was superflous since he had no power or authority to do anything else no matter what he saw and whether or not Trayvon "got away".
Just because I take the speed limit in front of my house a bit too seriously, does not give me the right to stop motorists and issue speeding tickets or set spike strips in the road...I am not a cop...GZ was not a cop, and he had fulfilled his duty to his neighborhood watch when he called LE,.