This sounds like a gang retaliation issue to me.

"On Tuesday at about 11:37 p.m., a group of people approached a Niles home on 6th Avenue and began firing at the house where teens were gathered, say police, the South Bend Tribune reports.
Two teenage girls – Demi Galvin, 15, and Yasmeen Scott, 18 – were pronounced dead at the scene, Mlive.com reports.
Three teenage boys were rushed to the hospital. No information on their conditions is available."

https://www.msn.com/en-us/news..../crime/2-michigan-te