In my country, these crimes happened quite recently (and got a lot of media attention), the criminals were caught and convicted, but not all got life in prison. Maybe they should move to where you live after getting out of prison.
1. Two school students murdered a 17 year old girl (using an axe, a hammer and a metal bar) then cut her body up into very small pieces and threw those pieces outside, while keeping one piece i the fridge for eating later. During trial one of the murders said that what they did was not cruel because they killed the victim before cutting her up. They got 20 years, hopefully they are not released sooner for good behavior.
2. A girl (17 years old) was waiting for a bus when a car stopped and the two guys in the car offered a ride. The girl refused (smart), bu then thee guys just forced her into the car, raped her then put her (still alive) in the trunk and lit the car on fire. The ciminals were previously convicted on multiple lesser crimes. At least these guys got life in prison. And they probably will have a "great" time while in prison.
In both cases a noose or a bullet would have been more appropriate.
Or at least the prison should be how it was when my country was part of the USSR - no TV, no complaining that you do not like the conditions there and also hard work for some. When people got out of prison they did not want to return there at all, unlike some criminals now who get out of prison, start committing crimes again and go back to prison shortly after.