Sad situation as reported. But reports are often only an outline.
I must admit I'm thinking 6 guys don't go in cahoots to one house unless they think the six way split is going to make it worthwhile. And I'm thinking unless the house was way more ostentatious than the surrounding houses, they thought there were drugs or drug money there.
The age range of the suspects (46 to 19) do look to take it out of the gang-related area.