15 year old found dead after searching for 12 hours

Police say that 15 year old Katana Johnson was found dead after 12 hours of being searched. Police say that she was found deep in the woods. Also that Katana was last seen with some friends named Sarah, Haden, Veronica and Marcus. All of her friends have been arrested as suspects. Johnson family said that the reason Katana was out at 3:00 am was because Katana said she heard a sound outside but it was really to sneak out said the mother of Katana. According to the medical examiner,Johnnson was stabbed 20 times and some were defensive, at least 10 were. But then another man came along and turned himself in and is gonna suffer 20 years in prison, the man’s name is Adrian Jameson