San Diego ( CNN ) -- The Christmas Eve double killing tantalized Southern California : a 22-year-old woman and her fiance 's brother were found shot , both in the head , in a car in a San Diego mall parking lot . Then Ilona Flint 's fiance went missing , prompting a monthlong search that officially ended Thursday when authorities identified a body found in a car 100 miles away in Riverside as that of Gianni Belvedere , 24 . What some first speculated as a love triangle gone wrong with two brothers has now become something more complicated -- a triple murder case in which authorities are still seeking suspects and explanations . Belvedere 's body , decomposed in his own car trunk , was identified by fingerprint , and his death was ruled a homicide , Riverside police said Thursday . San Diego police have scheduled a press conference on the case Friday . It all began after Flint finished work at a Macy 's that was open late for Christmas shoppers in Mission Valley Center Mall . Salvatore Belvedere apparently went to pick up his future sister-in-law in the post-midnight darkness -- a gesture close friends described as a family courtesy , dismissing media speculation about a love triangle . At 1:15 a.m. on December 24 , Flint called 911 from a car reporting she had been shot , but she did n't know the vehicle 's exact location , other than being near the mall . Police found Flint dead in the car and 22-year-old Salvatore Belvedere , in the driver 's seat , fighting for his life with gunshot wounds to his head and torso . He died three days later . Gianni Belvedere was last seen at his residence at about 10 p.m. on December 23 . After the double shooting , a police bulletin listed him as a missing person . Police and the coroner in Riverside on Thursday declined to comment about their investigation into Gianni Belvedere 's homicide . `` There was a lot of idiotic speculation that Gianni had something to do with the shooting or that he had possibly harmed himself , that he might have fled , that he was in a jealous rage and did this , '' said Andre Briones , who was such close friends with Flint that he has a tattoo of her likeness on the inside of his left forearm . `` Anyone who knows the family , anyone who knows Gianni and Ilona 's relationship completely understands that there is no possible way that could have ever happened , '' Briones told CNN on Wednesday . Flint had worked for a year at a vintage clothing store that Briones owned , he said . Investigators have n't disclosed a motive in the double murders at the mall , other than they have ruled out robbery . `` In looking through the evidence at the scene , it does not appear that any sort of robbery took place during this incident , '' San Diego Lt. Michael Hastings said . In the days after the shooting , Belvedere family members joined candlelight vigils and made urgent public appeals to find Gianni Belvedere . The family also appealed to their missing son and brother . `` If you hear me , please call me , call your family , we do need you right now , '' Antoinette Belvedere , a sister , told reporters two days after the mall shooting . The two brothers worked at a family Italian restaurant in Lakeside , outside of San Diego , Briones said . Flint and the two brothers lived in the Belvedere family home in San Diego , Briones added . `` She was with Gianni for a very long time . They loved each other deeply . And she really cared about Sal , '' Briones said . `` Even though she was shot ... she was still able to call 911 for herself and Sal . '' Gianni Belvedere 's car was discovered Friday in a fast-food parking lot in Riverside . Neighbor Karen Regalado said she noticed the car was parked in the lot for about a week and a half , but `` I never smelled an odor coming from it . '' But one passer-by did notice something suspicious and called police , who found a decomposed body of a young man in the trunk . The engaged couple were together for about seven years and met in Provo , Utah , where Flint 's family lives . Flint then moved to San Diego at her fiance 's invitation , Briones said . `` They were a great family , '' Briones said of the couple and the brother . CNN 's Casey Wian and Chuck Johnston reported from San Diego , and Michael Martinez wrote and reported from Los Angeles .
Authorities identify decomposed body as a missing San Marino . Anthony Belvedere , 28 , was engaged to Ilona Flint , 24 , who was fatally shot . Flint 's body was found in a car with her fiance 's body , also fatally shot . What some speculated as a love triangle has now become a triple homicide .