They were a family. No matter what the news showed or said, they weren't just a gang, although they were a damn good one, they were a family. They couldn't do it without each other and there was the unspoken rule that the only way anyone was leaving was if they were dead. They all knew that, so that's why when Ray left it sent a shockwave throughout the others and suddenly it felt like when the all first joined again.
They were constantly checking over their shoulders and doubt filled every waking moment. Their family was fractured and they weren't sure how to fix it, but nobody could have seen what did fix it coming.