Interesting analysis...
https://youtu.be/P3uFeef3wg8Seems to debunk shooter from window or water tower...
Even he admits it doesn't resolve other questions...the comms breakdown, no drones, why that bldg was outside their perimeter, who was Crooks talking to, what are the encrypted accounts about, is it Crooks or Yearick, what was that (USSS?) agent doing by stage before the shots, who actually made calls that day (especially in orders for personnel movements and when/why), who approved event plan and assets?
Also, who really shot the assailant? Some say it was counter-sniper, some say possibly somebody else...all seem to agree it was from behind the assailant. Some say subsonic due to less kinetic effect on the head of the assailant...some say standard sniper round and video above has someone saying they saw hair fly. Still lots to be cleared up.
As for Maxwell Yearick or Matthew Crooks, easy to clear up with autopsy results one would think, if they haven't been mucked with...and locating a living breathing Yearick.