I am a bit confused by this

Again–I try not to judge the police because I’m not a police officer and I don’t know the procedures and everything. But I am a bit confused by law enforcement’s actions in David Standish‘s case. Specifically this:

The houseboat was eventually destroyed by the police after they’d thoroughly checked it.

Why would they do this? The houseboat was Standish’s private property and his home. Surely it should at least have been given to his heirs? We know he had a family.

Can anyone who knows more about police procedure than I do possibly enlighten me as to why this may have been done?