No, what he said was he returned to the area around the school at 6:00 after having returned home after the shooting. Your lie is based on an edited video of only his partial comments.
Bullies of kids will keep on lying.
What you mean is that is Hogg's latest version of what he did. Originally he said he grabbed his camera and went to the school to film events. After people said that means he wasn't at the school for the shooting, then he changed his story and said he did the filming the evening after the shooting.
Who knows? The press has refused to challenge him on anything.