He must be punished for his mistake, but whether he will be given a life sentence or not will be decided by their court.

However, if he gets two such sentences, other players will be warned not to make such mistakes.
On the other hand, it would be better to ban him from this sport for life, but it isn't reasonable to give him a life sentence.

After giving him a temporary punishment, he should be banned from football for life and let him live freely. Perhaps he has committed some crime that has gone beyond the limits.

Although I shared my opinion, what their country's legal system will say is their business. I don't know about their laws, but he should be banned for life and released. Then, he can work in another sector and earn a living for his family.