The serial killer has stricken again.

Until now the killer has eluded the police as regards the case of the serial killings near Edmonton, but they are still investigating.  Meanwhile, an eighth body has just been found by a couple of middle-aged men in a picnic area on the side of a highway. They were on the way to their summer cottage where they have been going every year for five years. The victim was 20 years old, and he would have died from a point-blank headshot according to the autopsy report. A youth fitting perfectly the killer's description perfectly has been arrested [1] by the police, and has been remanded into custody, inasmuch as he was seen by the manager of a filling station the night before in a red car, with the victim at the wheel, close to the crime scene a few minutes before the estimated time of the murder. The police had never before been so close to arresting the killer since the murder of his fourth victim -- the case of a strangled child found in the restroom of a gas station, a case which the police had been investigating for four months in this same area. The police are currently looking for the car involved in this incident, and an eyewitness is still giving his statement at the Edmonton police station of Edmonton.  According to the witness's eldest daughter, the witness, an elderly man, has been managing the gas station for only one month, and lives in a little house there, far from any social contacts, without a television set or radio, and alone with the silence he loves so much, according to his eldest daughter. The suspect has not confessed yet, and will be set free if no piece of evidence is found by Monday.

I need your corrections please.

[1]  I did not understand "covered by the police".  I therefore continued on the assumption the person was arrested.  I apologize if my assumption was incorrect.

Here is a little jeu de mots I hope you will enjoy:

The police have found the bodies of 10 people who were murdered in the kitchen of their homes.  Each victim was lying on the floor with his face in a bowl full of Cornflakes and milk.  The police have concluded that the murders were the act of a cereal killer.