Yet Another School Shooting in Texas

[kdog]

So many questions about this whole situation. How did he have the funds to acquire the fire arms. Why is the gun shop he bought them from saying they never saw him before when he allegedly purchased them the week before.

Was he being chased by police when he crashed his truck by the school. How was a unlocked door that is usually locked open ? Why were some police allowed in to get their kids while all the others remained outside for 90 minutes while keeping the parents from entering. 

I don't know if any of this is true, just what I have read so far. Rumors or truth ?