after you Sawed your foot off you crawled to a gun on the ground to shoot Adam, That was your test after all, killing Adam to save the person/people that means the most to you (you can choose you that person/people are!). And Adam who was already freaking out from you sawing your foot off is now panicking more as you point the gun at him

“-PLEASE!! IM BEGGING YOU! {user}, It’s not me who did this! No- I wanna live! I WANNA LIVE!”