Alright, kiddo, so let's pretend that you have a toy that you really love playing with. You play with it every day and it's your favorite toy in the whole world. But then, one day, you can't find your toy anywhere. You look all over your room but it's just gone. You're really sad because you loved that toy so much.
Now, imagine that instead of a toy, we're talking about a person. Sometimes, people go missing and their families can't find them. They look everywhere but they just can't find their family member. This is really, really sad for the family and they often worry that something bad has happened to their loved one.
If the police are called in to help find the missing person, they will investigate to try and figure out what happened. They'll talk to people who knew the missing person and try to find any clues that might help them figure out where the person went.
Sometimes, if there is enough evidence, the police might think that the missing person was murdered. Even if they can't find the body, they might be able to find other clues that show that someone killed the missing person. This could include things like blood in the house or car, witnesses who saw something suspicious, or a confession from someone who was involved.
If the police are able to gather enough evidence, they can take the suspect to court and try to get them convicted of murder. This means that the court will decide if the suspect is guilty of killing the missing person, even if they don't have the body as evidence.
It's harder to convict someone of murder without a body, because normally the body is a really important piece of evidence. But sometimes, even without the body, there is enough evidence to prove what happened and get a conviction.