"She always wanted her kids to have the best relationship possible with their dad," a source told People on Thursday.

Kelly Clarkson's ex husband and father of her two children, Brandon Blackstock, has died, and the family's loss makes their last Instagram posts even sadder.

Brandon Blackstock stayed largely out of the spotlight in recent years. The talent manager, who died at age 48 on August 7 after a private battle with melanoma, made his final public appearance at the Critics’ Choice Awards.