
Basically people think of two types of punishments for killers. Either life imprisonment or death.
My view is that if the death is due to an accident or any unavoidable and unfortunate event then the punishment should not amount to death. But people who kill for money, mental imbalance or any other reason purely to satisfy their needs should be given death. No other punishment will do justice to the killed than death to the killer.
Some people are proponents of life imprisonment hoping that the killer gets reformed. Jail will just harden a criminal in most cases. Such beings cannot be called as human. They are worse than animals. People who think that life imprisonment is justice should consider if they would think the same way if it happened to them or someone close to them.
Bottom line: Death to remorseless, cold hearted killers.