Authorities have identified a New Jersey man as the suspect in the separate, decades-old cold case murders of a teenage girl and a 24-year-old woman. DNA evidence has revealed Francis T. Schooley murdered Marebeth Welsh in 1993 before killing 16-year-old Jennifer Persia several months later, in 1994, the Camden County Prosecutor's Office announced in a Thursday, April 9, news release. "Thanks to remarkable advances in DNA technology and diligent detective work, we have finally been able to bring answers to two families who have waited decades for justice," Camden County Prosecutor Grace C.