No, John Rayburn does not face legal consequences for killing Danny in Bloodline. While the events profoundly impact him and his family, leading to significant psychological torment and internal struggles, they ultimately avoid legal repercussions for Danny's death.
The series concludes without John or other members of the Rayburn family facing formal charges or legal accountability for their involvement in Danny's demise. Instead, the narrative focuses on the heavy emotional and moral toll the secret takes on their lives, demonstrating that while they may escape the justice system, they are not free from the guilt and psychological burden of their actions.
This lack of legal resolution highlights a key theme of the series: the idea that some wrongs, particularly those committed within the confines of a family, may not always be met with external justice but instead result in a different, often more debilitating, form of internal suffering.
