So That kid whom wanted him to make a sword use it against him and he die?

Yes. A miscalculation on his side.

Did the kid do it on purpose are was it just an accident? If so why? That part of the story that I don't get.

A petty one:
http://www.furaffinity.net/full/19816153/

ty

Oh yeah that kid be dead

YAAAAAAAAAAAAAAAAAAAAAY!!!!!!!!!!!!!!!!!!!! KID DEAD! COOL

Time to celebrate the brat's death. Let's also pray that he also suffers being burned in hell.
Man, no kill like overkill, huh?

I honestly don't get that kid. Like why lie so long to get a sword only to then try and kill the guy who made it? He's of been better off paying for the sword and fucking off to kill people elsewhere. If he wanted to test it out he could of asked to spar with one of them, not harmed them, and then left. Like really even if the sword didn't randomly break he likely would of died anyway. This was a stupid decision no matter how you cut it (pun totally intended lol)

For a petty reason:
http://www.furaffinity.net/full/19816153/

DAMN. ZEDD IS ONE HARD-ASSED WARRIOR! Boy did that little twerp get what was coming to him. Dawww, Zedd loves Montero Zedd loves Montero!

so the most logical solution was to murder the boy?

Not logical.

"You hurt my bae, I'll kill you,"