also, i don't think he/them will ever be caught, buit i thnk they will find he/them dead cause they blew their own brains out. IT always happens, people kill a bunch of other people then shoot themselves.
hell yes, but it is best to have an instructor, and just use the videos to supplement your training. If you want to learn from videos i would suggest getting a more simplistic system such as boxing or thai boxing rather than trying to learn an entire kung fu style because kung fu has alot of forms and they would be very hard to learn from video.
the reason you don't see 80 year old muay thai practicioners is cause the can't walk anymore. It's sooooo friggin hard on the body, especially the shins.