Detectives seek new leads in decades-old stabbing of Pennsylvania teen in mall parking lot

Detective shared photos of 17-year-old Patricia "Patty" Bartlett, who was stabbed to death in Jan. 1975 in the Oxford Valley Mall parking lot.
OXFORD VALLEY, Pa. - Police are hoping to find new information in the decades-old cold case murder of a Bucks County teen who was brutally stabbed in the Oxford Valley Mall parking lot.
Patricia Bartlett, a 17-year-old student at Pennsbury High School, was visiting the mall to buy film to photograph an upcoming snowstorm when she was killed.
Police found Bartlett suffering from several stab wounds in the east parking lot, near the former Gimbels department store. She died at the hospital a short time later.
Scant leads about who killed Bartlett has left investigators puzzled over the last 50 years, and on Monday detectives called on the public for new information.
"Patty suffered a heinous death at the hands of an unknown violent predator," District Attorney Jennifer Schorn said.
"Although the case went unsolved, Middletown Township Police have never forgotten about Patty’s murder."
Anyone who may have information that can help detectives piece together the 50-year-old unsolved homicide should contact the Middletown Police Department.