There is a perspective problem with such presentations which lends itself to dramatic exaggeration. One would think bullets are whizzing past continually everwhere. It looks horrendous, and it is tragic, but size matters. Zoom out and it appears even worse.
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Zoom in and it appears different. Also, the downtown situation is exaggerated as it is based on residential population and does not account for huge transient population of daily employees and night time visitors for sports, casinos and other entertainment. Zoom in time and the perspective changes again.
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And why does Belle Isle with no shootings fall into the 2-4 per 10K range? Methodology matters.