You may 'believe' that but it is pure conjecture.
There is no evidence to support your belief but there is strong evidence that Trayvon Martin initiated an assault on George Zimmerman.
A witness saw Martin attacking Zimmerman. Medical records reveal Zimmerman received a broken nose, deep lacerations to the back of his head and a concussion.
The 911 tape reveals George's screams for help.
Zimmerman's location proves he did not continue to follow Martin after the 911 dispatcher said there was no need to follow. Plus there is Zimmerman's account.
If you believe this, you believe in gun control.
If more honest, law abiding citizens carried guns for protection, there would be far less violent crime.
More Guns, Less Crime...
More Guns, Less Crime 2010 Edition