Costs included extra police , sanitation , traffic control for Tuesday 's memorial service . 3,000 police officers -- about one-third of the force -- were on hand for the event . Comment: The city , therefore , was unable to collect contributions for several hours on Tuesday . Site raised $ 17,000 before crashing on Tuesday due to high volume .
Costs included extra police , sanitation , traffic control for Tuesday 's memorial service . 3,000 police officers -- about one-third of the force -- were on hand for the event . Comment: Site raised $ 17,000 before crashing on Tuesday due to high volume .