Ohio, Lorain Police and officer Phillip Wagner
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Data analyzed by the CBS News Crime Unit shows at least 50 law enforcement officers have been shot in ambush attacks so far this year.
Hundreds gathered Thursday outside Lorain City Hall, united in grief and support for three Lorain police officers shot in Wednesday's ambush attack.
When Parkersburg Police Chief Matthew Board was asked about the dangers of working as a police officer, he said police officers learn in training how to prepare for these situations.