Dear Flea, Izaya,
If your reading this, I've gone through with my plan, well, your always saying you wanted me dead, so I bet your throwing a freakin' party huh? This letter is more for people to know why I did it.
Firstly, It hurt, having to hide my pain beneath my supposed 'anger' Izaya, your not the only one with a mask so perfect no one can see through it, it was lonely, and painful to know that the reason no one comes near you is because their scared shitless of you. Partly your fault too flea.
Secondly, I know that the one sided love I felt for eight years now, would no longer be a hindrance...
And lastly, no one needed me anyway, I was nothing but a monster anyway right? Monsters need to disappear, which is what I've done, I've disappeared. For good, I don't hold a grudge against anyone, surprisingly, least of all you Izaya. And why? Your the subject of my unrequited feelings. There was nothing I could do about it though, you love all humans equally, and hate me, so why should I hope you even care about me in the slightest?
I hope your aware of just how much you controlled my life.
A lot. That's how much.
I loved you stupid flea. But This letter is proof that I've gone and succeeded giving you what you want. My death. Your free, no more looking over your shoulder for flying street signs.

I sorted my affairs out, obviously, Kasuka should be fine now. Shinra, well... Is Shinra, he'll be depressed, but he's got Celty, and Celty has Shinra, but me? I could never have the person of my affection, heh, never expected myself to become depressed... Enjoy the rest of your life Flea...
With all the best, Shizuo (Brute)

Izaya Orihara reread the letter, before scrunching it up. "Damn brute, your really unpredictable," Asingle tear fell from his crimson eyes, before he turned from the grave and walked away, Izaya never cried, yet, for the first time, in his twenty three years, a single tear of sorrow, fell from those orbs, "Enjoy my life? Your so stupid Shizuo... I could never be happy without you..." He smiled sadly, he then took one look over his shoulder, looking once more at the grave.

Here lies Shizuo Heiwajima,

Beloved son and brother.

Gone but not forgotten,

Underneath the writing, was another message, Beloved monster.

Izaya had carved it himself, just after the funeral. He began to walk away again, letting his tears flow, his tears, for his 'Beloved monster' whom he had lost some weeks before... After receiving a note through his door, this note, Shizuos suicide note. He hated himself, he hated Shizuo, the bastard was unpredictable, but Izaya had never expected the brute to shoot himself in the head.

Never take his own life.

The informant let out a solemn laugh, while crying...