On Fretkillrs YT page he said that his parents were baby boomers and he grew up listening to their music. His fingers look younger than a baby boomer's to me. In one video, he's wearing an ESPN jacket. I went to the ESPN website to look at the jackets for sale. The ones for sale to the public didn't look remotely like the one he was wearing, which was black with ESPN in small block letters, multi-colors, on his upper left chest. I don't know, but it looked "official."

As someone who was taught vibrato, and has also taught vibrato, I don't believe anyone taught him vibrato, which he most probably would have been taught if he had taken guitar lessons. He has a vibrato of a sort but it's not what you learn from a professional.

I sure hope he gets back on youtube.