Voici un exemple qui pourra t'aider un peu .

An unknown of about 25 years old has been found dead in a villa last night 
A couple of neighbors heard a boy screaming for help. Moreover, a dog was barking... 
A witness passing around saw some smoke getting out of the house while the fire was spreading rapidly. Therefore he called immediatly for fire fighters.. Because of the strong wind, firefighters had difficulty stopping the fire. Detective Mr Gong has been put in charge of the investigation. Therefore, he was in charge to determine the exacts circumstance and the guilty person. 
Lately, the guilty person has been arrested  and is going to be sentenced for murder .
merci ça m'a bien aider, merci beaucoup !