A stalker sent his former girlfriend a barrage of threatening messages, then set her car on fire. Liviu Groparu, 38, from Peverel Road, Cambridge, has been jailed for three years. A court heard he led his victim to believe she was being targeted by a previous partner from years earlier. She began receiving threatening messages from numerous unknown phone numbers and Facebook accounts just days after her relationship with Groparu ended in November 2022. In one message, the perpetrator said they were now free “to do what they want” to the victim because she was no longer in a relationship. Her p…