This transcript is automatically generated
Let's go right to the scene of the tragedy Sanford Florida where Craig speaks with the teenager considered.
By -- -- his kid brother.
So on that fateful day in -- Martin was actually coming here is coming to watch.
Basketball with you aren't this music event that you is nice this -- And it is nice hang around me.
Trade on -- was staying with his father Tracy -- Tracy's girlfriend brandy Green and her fourteen year old son Chad.
At -- townhouse and Sanford Florida.
The weekend at -- for 26.
-- -- just turned seventeen a month earlier was like a Big Brother Chad.
There are about to watch the NBA all star game together usable anyway and -- -- historic.
You know and this has -- What and so what do you say yes we -- -- when it what you want this it looks.
So who's getting -- skills yes.
Tracy that dad and brandy had gone out to dinner in downtown Orlando.
Tell you that this community is it high crime communities it to something that you would have to be concerned about the boys going out -- No not at all.
To be here for four years and never heard of any cram anything -- I know.
Ironically -- moved here from downtown Orlando to provide a safer environment for her fourteen year old son.
-- -- was visiting at his stats insistence to get him away from Miami after a third suspension from school.
This time for possession of -- -- with traces of marijuana.
It was quiet neighborhood.
Peaceful and that's why -- moved here now apparently.
Told police that the reason he was out on patrol is because there's been a rational steps in this community did you hear -- Haven't heard anything about -- no no no knowledge of that.
You don't believe.
28 year old Jordan Zimmermann a zealous neighborhood watch captain who pestered police with the rash of 911 calls.
Frequently complained of children quote habitually playing in the streets.
Four of six calls released Zimmerman describes as suspicious.
Young black man.
It was a rainy day just like today when George -- -- it.
Turn on -- walking through this townhouse complex and it's right at this intersection.
That -- Zimmerman followed trip on along this path that he says was going behind people's property.
This out -- firm behind the didn't have to walk -- -- you know he'd come walking.
They walked it down to -- with this notion that walks around the front for you to -- -- -- -- we have no other place a walkway in the grand.
On February 26 when George Zimmerman called 911.
Reporting a suspicious person walking behind people's property.
But as you can see this as a public walkway which leads to Tracy Martin's girlfriend's apartment break here.
I don't like -- medical.
Yeah I'm able I'm not sure that if you don't screaming -- don't know I mean I don't know I think they're yelling help thing I don't know.
Friends from a technical and a the night.
I feel very guilty about it just because.
You know as a mother he wanted to -- your child can have a hallways.
Could take him game anyone else anybody else Taliban -- -- killed and they came until my Hala.
And for me that BP took a -- -- you fine.
At that time and it had been here.
Where I Leo.
It is heartbreaking to even though he's not my son he's looking like just send me.
I spoke with him all the time I talk to him.
We have we had a good -- we.
What do you think could be learned -- -- -- step.
Not -- Not to judge and one.
Yes Tony about the impact on.
-- you still.
Nowak why I have been in you know.
Why they stand now he's being you know about a mile wind dance now who he loves -- that person making their own and that the person that who.
You know so -- -- confuse the win this I am.