Twitter stories: South African man kills his best friend after he was offered money for his body parts

A South African twitter user has narrated how her cousin was killed by his best friend after he was offered money for his body parts. She tweeted;

My Parents just came home from burying my cousin. Full story: his best friend killed him because he was offered money for his body parts. My dad is not okay. My dad is crying. We are not safe as a nation. Men and women. We are not safe.