i think murder still liable for death sentence....before death sentence abolished last year

considering the time the movie was made....death sentence still in effect

and dont think the Abang asked for death sentence, if you mean when he talking to the monk....

Abang was the final murderer right?

and forensic pointed out Abang's finger print was on the social worker's neck

and scene shown the social worker actually did not die when Adik pushed her

after Abang came up to the scene, the worker woke up and Abang panicked and stopped her from shouting plus breathing in the process finally killed her

you sure you watched the entire version of the movie??   

the mute guy is Abang lar

Adik was the first that pushed the social worker thinking he murdered her and ran away

he bumped into Abang downstairs explaining to him that he killed the social worker

Abang went up and thought the worker was dead....and then Abang's friend knocked at his door looking for him

making Abang panicked and at the same time the social worker woke up, triggering Abang to try to stop him from shouting subsequently killing her

all this was revealed later by flashback of Abang, and he did not tell Adik he was the final murderer

anyway from your post i think either you didnt pay attention enough when watching the movie or just trolling