Im Done Dad

Its 8:30 here at my home, that is when my familly usally eats dinner. My name Is Kevin, I live here with my son nick, and my wife michelle. My wife who always works late wont be here for awhile and nick is upstairs playing in his room. It is now 8:45 and i had finally gotten the dinner on the table.
Nick​ ​
I screamed from the dining room hoping he would hear me
I heard a soft voice come from his room.
Ya Dad
Its time to eat i yelled loudly
Ok Im almost done doing with what im doing
He yelled coming from his room to where i could just barely hear it, just like earlier. I might as well give him a few more minutes, because if i hadnt i know he would keep on saying for me to give him a little longer. It was now 9:05 and i thought i had given him more than enough time.
Nick time to come down and eat
it took awhile for him to respond and his voice sounded weak and in dire need of help
One..More....Minute
I was getting furious and i was going to go in his room and tell him if he doesnt come he will be grounded. Before I could walk up the stairs leading too him room i froze, my stomach dropped and felt like the walls were caving in on me. I noticed all the knives from the cabinet were missing, I started running up the stairs my heart beating faster then ever. His door was locked i tried everything i could to get in.
Nick open up or your in serious trouble
No answer, i ran straight to the door shoulder first, the door got knocked down and what i saw on the floor in front of me made me throw up. My own son with knife wounds all over, by the looks of it he tried hard to have killed himself. I dropped to my knees and held his lifeless body close to mine and i saw a note on the floor next too us that read
Im done now