Thats nonsense, you can literally see the bullet doing damage and how and why it caused the resulting death.
But regardless we can show it statically. Look at how many people die from being shot and compare it to how many random people die from the same causes in the same time period.. we call this normalization. If the gun shot death rate is higher then we know gunshots cause death.
Notice how you completely skipped the step of normalization on the ARES data though?