Alexander Rivera, of Philadelphia, has pleaded guilty to aggravated manslaughter, stemming from the death of Michelle Johnston at Bel-Air Motor Lodge on Route 73.
A 26-year-old Philadelphia man has been arrested for strangling and stabbing a woman inside a South Jersey motel, authorities said.Alexander Rivera, of the 6300 block of Cardiff Street in the Mayfair section of the city, was taken into cus…