Will not start

What does the vehicle do when it won't start? There could be a number of causes but it all depends on what it does. If it cranks and does not start then we will go in a different direction then if when you turn the key it won't do anything.

Here is a quick video that helps explain what we will be looking at:

https://youtu.be/dCjmRL3p4Cs

Let me know what it does when you turn the key and we can go from there. Thanks