Missing Much Loved Grey Tuxedo CAT

My beautiful boy has been missing since Sunday, July 8th, 2012. His name is Sakurai (SAH' koo rye). He responds to Saku, Mungki (monkey), and Mungx. He is an indoor/outdoor kitty who tends to try and stay out past his curfew when it gets warm. I live where there are coyotes so I don't let my cats out at night though once in a while they sneak out and stay out until the morning. He has not been back and I am freaking out. He is like a son to me and one of my best friends! Saku is medium/dark grey with white socks on all 4 feet. He has a white chin that follows white down his throat, white upside-down, heart-shaped locket on his chest and a white tuft on his lower belly. A faint white smudge on his nose bridge. His left ear has a little tear (towards top and outside) from a rat fight years ago. He has a long tail that is bushy. He has short hair. He has gorgeous two-toned green eyes. Long and lean body with strong legs. Big ears. He has a ResQ microchip #981020005394298 that is registered with petlink,net. with my information. He is not wearing a collar. He is 12.5 to 13 lbs. Neutered male. 5.75 years old. Some plaque on teeth. Trots like a dog and leans on you like a dog when happy. Can be territorial and growls like a dog. Super affectionate and playful. Pouty sometimes. Snores. Loves his armpits rubbed. Meows loud when he wants your attention. Loves water from the bath tub. He is deeply loved by his human mama and his 3 cats family members miss him a lot. Especially his girlfriend. More shy of strangers but if he gets to know you and likes you, he LOVES you. Please help to bring Saku home. He is a special guy and belongs with his family. Hopefully he is just on an adventure... he did this 2 Summers ago for 2 to 3 days and returned on his own but that was in a different neighborhood where coyotes weren't such a threat. If you have any information on him, please respond to this post via email. If you have hit him with your car, if you know he is dead, please just let me know. Much better to know the truth than to always wonder what happened. Thank you for taking the time to read this.