Help Find Dave: Tall, Black, Green-Eyed Cat

Dave is an 11 yr old domestic short-haired. He is all black with a few white hairs on his chest & a small white fleck on his inner left ear closest to his head. He is neutered & declawed. He has very large light green eyes. He is very tall & slender with a very long skinny tail. Dave fell out of our kitchen window on the very early morning hours of March 14th. He is very skittish but friendly. I know he is extremely terrified of being outside. He has gotten out before but not here. When he got out before, he always tried to get right back in. He's not familiar with this area. We've only lived here for 1 year. We have tried everything. Scent trails, traps, posted flyers, posted on social media, gone out looking at all hours...I'm completely lost without him. My father who passed away gave me Dave on Halloween. He is named after my Dad.