Man throws trolley on woman

Any proof that she bumped him with her trolley? I react to a situation in Brazil, at a supermarket known as Dia Dia, where a man threw a shopping cart on a woman's head while she wasn't looking, knocking her unconscious. According to the clip, it appears to be a random violent crime, but according to most men on WorldStarHipHop and YouTube, she provoked the man by bumping him with her cart. I saw articles which said that the man claimed she called him gay and they had an argument, but I have not seen ANY article which mentioned about her bumping him with her cart. That tells me, that's all made up. Plus the man has a criminal history of domestic violence.