Visible crew/equipment: As the house is crumbling in on itself in one of the last scenes, there are a couple of shots of the ceiling being pushed in by some 'unseen force'. If you look closely as the last bit is falling, you can catch a glimpse of a hand and black sleeve pushing it in.
Visible crew/equipment: When Mrs. Collins is talking to Sue and Tommy, Norma enters the room with attendance sheets. As she leaves you can see the boom mike pole and boom reflected in the glass of the door. (00:38:25)
Visible crew/equipment: When Carrie is waiting for Tommy to pick her up, a white "T" mark is visible on the road where Tommy's car is to stop. (00:53:55)
Answer: Since blood was dumped on him too she must have realized that he wasn't a part of it, so yes, she cared for him. In the book when Carrie touches Sue, they link minds and Carrie sees that Sue felt bad about teasing her and was trying to do something nice to atone, and had nothing to do with Chris' nasty prank. So yes it's safe to say she grieved for Tommy and forgave Sue.
Grumpy Scot