schmucks have the right and duty to identify themselves to the police when they show up.
Maybe if you read any of the reports, you would see that he did identify himself with his Harvard ID and his Massachusetts Drivers' License, but they arrested him anyway.
And since you know it to be a "duty," by which I take it that you mean it to be a legal obligation, maybe you could cite the statute that you think makes it a requirement to identify oneself to the police in his own home.
ML/NJ