In less than two weeks since releasing new sketches of a suspect in a 1976 double homicide in Marinette County, there have been more than 40 new tips in the case. The Marinette County Sheriff’s Department sent a Virginia company $4,000 and a DNA sample to produce the new pictures. They show what the suspected killer likely looked like at the time of the crimes and now. The case involves a young Green Bay couple camping in McClintock Park on the Peshtigo River in western Marinette County. Investigators say 25-year-old David Schudles and 24-year-old Ellen Matheys were murdered. They say Matheys was also sexually assaulted before she was killed. Marinette County Sheriff Jerry Sauve says new DNA swabs were collected and sent in for testing from four people that were not on the department’s radar before the new sketches were released.