Dismembered and thrown in a dumpster: Who killed Diana Vicari? By Marcelino Benito. CREATED Jan 15, 2014 TUCSON (KGUN9-TV) - Twenty-one years later and the alley on 7th and Ferro still has that eery feel. In a Tucson dumpster, police found Diana Vicari's arms, severed from her body. "It hit us all really hard, really hard," said Angela Vicari, Diana's sister. [...] For the longest time, county prosecutors and the Vicari family believed Lemuel Prion killed and dismembered Diana. Diana's car was found just days later near La Cholla and Osa St., just blocks away from where Prion lived at the time. In 1999, he was convicted and sentenced to death for the grisly crime. "I did not murder Vicari, nor did I know her," said Prion at one of his court hearings. He always claimed innocence and in 2002 his conviction and death sentence was overturned. There was no murder weapon or strong physical evidence to link Prion to Vicari's brutal killing, only arms in a dumpster. Diana's family was back at square one. The killer still out there. [...] TPD's cold case unit is reviewing the case. They are urging the public to come forward with new leads. Someone out there could very well hold the key to this decades old ca [...] If you have any information about this case, call 88-crime or TPD's Cold Case Unit at (520) 837-7588.