Reynhard Sinaga is a man who did very bad things that hurt people. He was not a good person. He would invite strangers to his house and then give them drinks that had drugs in them. These drugs would make them very sleepy and not able to move. Then he would do very bad things to them that nobody should ever do to another person.
The police found out what Reynhard Sinaga was doing and he went to jail for a very long time. This is because it is against the law to hurt people and do bad things to them. We should always treat other people with kindness and respect, not hurt them like Reynhard Sinaga did.