"Many people correctly pointed out that such imagery trivializes the purpose of protest and the professional role of the police, images that could dangerously alter the opinions of impressionable young people."
Many people correctly pointed out that such imagery trivializes the purpose of protest and the professional role of the police, images that could dangerously alter the opinions of impressionable young people.
Can anybody clarify the use of the comma in the sentence above?
For me, I feel it is reasonable and acceptable but I would like to comprehend the grammatical justification for that.
