Thought I was the only one with this problem. Began to think it was my system. Same here, Cyberphycho wouldn't spawn. As I had dumped the body in the dumpster, thought I'd screwed up this gig forever. I had scanned everything several times even, still wouldn't spawn.
The next day tried my luck again. Was sure it was bugged though, as I had scanned everything before. It said, "Search around for information." Again tried scanning everything, now also grapping everything, and destroying everything. Still nothing. Paused for a while, did some chores in RL. Came back a moment later. I looked to Johnny. Walked up to him, hoping a prompt or so would pop up. Nothing.
I despise that guy! Took the sniper rifle out and landed a few shots straight through his head. Was wondering if he would say one of his smartass remarks. Nothing, which surprised me, really. Took a couple of shots at each body, hoping that would do something. Still nothing. Decided to scan everything one last time. I aimed at the body in front of Johnny which I scanned numerous times before, at least I thought I did.
Then suddenly, out of the blue it actually started scanning! When it was complete, the Cyberphycho appeared! When it was dispatched, I thought back what I did, and then it hit me. All my previous attempts to scan, turned up nothing because it was done from straight above. This time it was scanned from the side.
Anyone with the same issue should try it. I missed the body in front of Johnny. I stood on the other side of the fridge some 3 meters of it away. Try scanning all the bodies from some distance. See if it works. At least dumping the body in the dumpster doesn't matter. You can still complete the gig.