From Mashable:

As other people try to stop him, the guy, believed to be in his thirties, shouts:

“Apple is a company that ‘violated’ European consumers’ rights. They refused to reimburse me, I told them: ‘Give me my money back’. They said no. So you know what’s happening? This is happening!” – before wrecking another iPhone.

Amazing to me that no one tried to stop him.