19-year-old black teen dead and four others injured after shooting at Georgia pool party attended by more than 200 people

Wali Clanton, 19, died after he was struck in the chest at the Fayetteville party. The four other teens were hospitalized and do not have life-threatening injuries. A security guard heard 15 gunshots.

http://www.dailymail.co.uk/news/article-3123807/19-year-old-dead-four-teens-injured-shooting-Georgia-pool-party.html

WHY ALL THE PROBLEMS AT TEEN POOL PARTIES?