Although good old Tony Blair tried to role back the principle of double jeopardy it still largely stands. If you are innocent, you are innocent. You can't be retried for the same crime twice (except when you can).
However, the family could pursue a civil action which would be on the balance of probability. I'm not 100% sure what the deal is with pursuing a private criminal action - ie whether it is possible to bring a second private prosecution for the same crime. I would have thought that a civil action would have a good chance of success.
^^ short answer probably not.
Although good old Tony Blair tried to role back the principle of double jeopardy it still largely stands. If you are innocent, you are innocent. You can't be retried for the same crime twice (except when you can).
However, the family could pursue a civil action which would be on the balance of probability. I'm not 100% sure what the deal is with pursuing a private criminal action - ie whether it is possible to bring a second private prosecution for the same crime. I would have thought that a civil action would have a good chance of success.