Under the cicumstances of the looters and such calling for death of officers troughout the nation cities... I would suspect this huge attendence was to show that they are and do support their own and people needed to see them out in mass united.
As for bad cops...there are bad people in every walk of life...take a look at churches and hospitals, politics etc. and many other fields of public service who throw their weight around. And they do so by using people who do have guns even if they might not carry themselves.
I’m a grest supporter of Police and always will be...warts and all. Government not so.
I read that Jet Blue was providing free airline tickets (2 per precinct) for any police officers wanting to come and support this family and officer.