...death sentence should be abolished

 ...death sentence should be abolished due to so many discriminations in USA and other countries.

If a person is 40 yrs old, killing him/her is not worthy but sentence them to an average of the rest of a 100 yrs minus 40, if 30: 100 yrs minus 30 and so one. Those people should stay alive, for other people that might commit a similar or worst crime, serve as an example to other people.  If killed, they are forgotten. People then commit the same crime. Propaganda via special programs could be done on the why those people are in jail until the turn 100 yrs (which will be not alive until then, cuz will die in jail). Schools, churches, TV programs and the news in comments, would talk on that. Onlookers and listeners would learn on that and might refrain on committing crimes of lesser or greater acts.

This justice system is a crime by itself.

Too many innocent people had been killed and found innocent after dead.  Isn't that a crime too? https://youtu.be/EHcHahx0AWc

https://www.youtube.com/watch?v=EHcHahx0AWc

That is why.

Death sentence is an excuse for the system to save money

Which is a greater crime.