When we saw the numbers come in, they didn't really jive with what I saw out on the street, and so we started digging in,” Graham Mitchell, City Manager for City of El Cajon, said.

According to crime data recorded by the Police Department, assaults happen about 1,000 times per month citywide. Here's what the pattern looks like in downtown San Diego.

According to crime data recorded by the Police Department, assaults happen about 1,000 times per month citywide. Here's what the pattern looks like in uptown San Diego.