Hello, I need help finding my missing senior cat Strider

Hello, I need help finding my missing senior cat Strider. He has been missing for over a month now, and I'm devastated. I adopted him from the East Valley Animal Shelter 15 years ago and he is the best cat!! I have attached a more detailed flyer. If anyone has any info, please reach out. I have zero leads. It seems no one has seen him at all. Any info will help. Thank you!!