Detective testifies at trial of man charged in fatal stabbing of Delco teen

A detective described in court on Wednesday how officers found blood on a man's clothes when he was arrested and charged with the stabbing death of an Upper Darby High School student. Lab tests later confirmed the blood belonged to Michael Garr. The 15-year-old was walking home in Drexel Hill, Delaware County, one night in April 2023 when he was stabbed nearly a dozen times. The suspect, Marson Weh, is now on trial. Jurors heard testimony on Wednesday from a detective who read a passage from a notebook investigators found in the 26-year-old's backpack. It said, in part, "The first time I ever killed, I stuck a knife in a throat." Prosecutors also presented video evidence they say shows Weh following the teen for several blocks. Delaware County District Attorney Tanner Rouse, who is prosecuting the case, has called the teen's death "random" and "senseless." (Photo credit: NBC10)