What? All of the photo is real. It’s just taken like 50 frames over a second or two and chosen the best. Since it sees 3 “people” it chooses the best for each “person” which leads to those 3 not being from the exact same, but still close enough.
I can’t imagine very many photos in evidence being like “well we can see you were holding the knife , actively stabbing toward them and also that they were stabbed to death by the knife, but I mean who knows WHAT could’ve happened in the one second the phone took the picture it stitched together to create this.”