CHOWCHILLA – On August 1, 2024, officers from the Chowchilla Police Department responded to a call for a sexual assault in the city. Upon arrival, officers contacted the juvenile, who had suffered injuries from the assault. Immediately, the victim was taken to Valley Children’s Hospital for treatment and underwent surgery due to the injuries sustained during this violent crime.
Through the investigation, CPD identified the suspect in this case. With the assistance of the Madera Sheriff’s Office, they had detectives watch the residence in Chowchilla, where the suspect resides. The suspect in the case, 40-year-old Arthur Dean Knapp of Chowchilla, was seen leaving the residence and was arrested by the detectives. He was interviewed and booked into the Madera County Jail for attempted murder and rape. He has a long history of violence and arrests. He is currently in the Madera County Jail for this violent and horrible crime.