Correcting Dr. Marie Crandall: "living near black people in Chicago means you are 500 times more likely to be shot than other people in neighborhoods without black people"

But who pulls the trigger? 

Only days after  a Northwestern University published a study claiming black people in Chicago are compelled to fire guns at one another when they live in close proximity to 'liquor stores or bars', this happens [13 shot in park: 'My younger brother was on the floor', Chicago Tribune, 9-20-13]:

Semehca Nunn tried hard to talk about her 3-year-old grandson, one of 13 people shot as neighbors played basketball in Cornell Square Park in the Back of the Yards Thursday night.

"They need to stop, they need to stop," Nunn said, the last word coming out as almost a shriek as she closed her eyes and collapsed crying.

A pick-up game was being played on the park's basketball court in the 1800 block of West 51st Street around 10:15 p.m. when at least one gunman walked up and started firing, apparently with a high-powered gun.

Thirteen people who were on the court or were watching the game were hit, many of them in the arms or legs.

The boy, Deonta Howard, was standing on the court and was shot near the ear, the bullet exiting through his cheek, according to police and relatives. His family said the boy is expected to recover but will need plastic surgery.

Three of those wounded, including Deonta, were in serious to critical condition this morning. The others ranged from serious to good condition, including a 15-year-old boy and a 17-year-old girl.

Police believe the shooting stemmed from an ongoing dispute between the Black P. Stones and Gangster Disciples, a law enforcement source said. It was not known if any of the victims were intended targets.

Police said they were questioning several people, but would not say whether any of them were suspects.

"I think it was like an AK," said one neighbor, describing the shooting. "Man, it was a lot of shots. Man, boom, boom, boom, boom, boom. A little boy got hit in the face."
Another neighbor said he heard as many as 20 shots. "I was across the park and I heard the shots and I came over and there was a lot of people down. It happened so fast. They were just playing ball, like they do everyday."

Alcohol purchased at liquor stores and bar hopping doesn't lead whites in Chicago to use guns... why do inebriates alter blacks mental composition in such a debilitating manner? 

Dr. Marie Crandall study doesn't factor in the one simple variable, clarified in her research showing no clear correlation to gun crime and liquor stores/bars in areas devoid of black people. 

That variable is simply this: in the absence of blackness, civility and culture flourish (even if its enhanced with liquor and beer!) [Study links liquor stores and bars to shooting risk: NU faculty member says findings point to broader issues faced by poor urban neighborhoods, Chicago Tribune, 9-19-13]:

Chicagoans near a liquor store or bar on the city's South or West sides are up to roughly 500 times more likely to be shot than other people in the neighborhood, according to an abstract of a study released Wednesday by Northwestern University. 

Though violent crime is a persistent issue in some distressed neighborhoods, Dr. Marie Crandall says there is a link between a troubled neighborhood resident's proximity to a liquor retailer and the risk of becoming a victim of gun violence.
Crandall, an associate professor of surgery at Northwestern's Feinberg School of Medicine and a trauma surgeon at Northwestern Memorial Hospital, said she expects the study's conclusions to be controversial. 

But Crandall said the data could drive broader discussions about how easy access to alcohol may affect urban neighborhoods already plagued by poverty, crime and a lack of easy access to nutritious food. A common thought is that liquor retailers in high-risk neighborhoods are prone to violent crime, but there has previously been little quantitative evidence to support it.
"You're adding alcohol to an already volatile situation in a distressed community," Crandall said.

The study found that gun violence rates near liquor stores in Chicago's southern and western portions stand in stark contrast with the rest of the city. Crandall found no clear link between liquor retailers and gun violence in more affluent areas but said clear risks are apparent in more impoverished areas such as Austin, Woodlawn, Roseland and Englewood.

 Chicago's southern and western portions are populated by the descendants of the "Great Migration" of blacks from the south. 

Those "affluent" areas of Chicago with no clear risk of gun violence aren't populated by those same Nubian descendants.

So it goes to show Dr. Crandall's study is wrong.

It should be: living near black people in Chicago means you are 500 times more likely to be shot than other people in neighborhoods without black people.