Straight from Richard Sherman himself:
"One thing I can't accept is what I read after the game about Seahawks fans throwing food at 49ers linebacker Navorro Bowman as he was being carted off the field with his knee injury. If it's true, it's beyond terrible. That's as low as it gets. I'm sure whoever did this is in a small minority of fans, because I don't think that kind of action is an accurate representation of the character of the 12th man. Navorro Bowman is a great player who plays the game the right way. When he went down, I dropped to a knee and prayed for him. He deserves better than having food thrown at him as he's carted off a field. All players deserve better than that."
I was in the stands and pretty much everyone around me did the proper thing, you wait patiently to see if he can get up and walk on his own. Human nature is curious who it is, a little more thankful he's not on your team, but never thankful he got hurt. You clap when he leaves regardless of what team he plays on. Because a few ass hats in an entire crowd of 68,400 people decided to throw food, our entire fan base is garbage.