 Think O'Reilly Auto Parts for all your car care needs. Get the parts and service you need fast from the professional parts people at O'Reilly Auto Parts. Whatever happened to Tony Horton, the guy who created the revolutionary P90X? 2017, I was knocked down. A very rare type of shingles went straight into my brain. My body was completely wasting away. I started researching everything related to building my muscle back again. That's when I learned about the potential of HMB plus vitamin D3 and what they can do when it comes to helping build muscle.