In what world do you protect yourself from a guy with a gun by running AT them? TM was free and clear. He had lost GZ, and was SEVENTY FEET from his door. Bolt for the door? Call the police? Stay hiding till GZ leaves? Nope, lets CONFRONT the guy. Sorry, NOT the actions of a "terrified teenager".
What proof do you have TM confronted GZ..Do you have a link?
Also, IF I am not mistaken you asked WHY would GZ call police IF he was planning to shoot TM.. IMHO.. I suspect GZ had something to prove to SFP..
IMHO he was going to prove he would not let this @$$.... get away..
I'm not convinced he wasn't staging the scene to kill an innocent teenager when he was on the phone with dispatch... IMHO..He killed an innocent kid in cold blood just because he knew he could use the SYG law and IF the person he shot was dead they certainly couldn't tell LE what really happened......JMHO