SAN DIEGO (CBS 8) - A San Diego family continues to plead for the return of their missing brother, who disappeared around the same time their other brother and a woman were shot.
On Christmas Eve, Ilona Flint and Salvatore Belvedere, both 22 years old, were sitting in a black sedan parked in the lot of the Mission Valley Westfield Mall.
Someone shot both of them. Ilona died at the scene. Salvatore, who was shot in the head and chest, died Friday, police confirmed.
Andre Briones, a close friend, tells CBS News 8, "We just had this great friendship and this really great connection."
He said Flint worked for him at Briones' vintage clothing boutique in La Jolla for a year-and-half before he closed shop in the spring.
"She lit up a room, people were just drawn to her, she was a magnet," he said.
San Diego police said they want to find Salvatore's missing brother, Gianni Belvedere, 24, to see if he knows anything about the shooting.
"We are considering him a missing person. We don't know if he was involved in this or whether he is an actual victim in this," said SDPD Lt. Kevin Mayer.
Detectives said they are ruling out robbery, but do not have any other motive.
Briones says Flint was born in Russia, raised in Utah, and moved to San Diego to live with Gianni Belvedere and his family.
"She is so focused. She really cares about what you have to say," said Briones.
He told CBS News 8, Salvatore was picking up Flint at work in the mall but wouldn't specify what store. He also said it wasn't unusual for Salvatore to pick her up when Flint worked in La Jolla.
Briones is planning a candlelight vigil for Ilona at La Jolla Shores on Saturday at 6 p.m. in front of tower 32.
San Diego police said Gianni was last seen around 10 p.m. Monday evening at his home in Tierrasanta. There have been mixed reports Gianni was with Salvatore and Flint when they were killed.
Gianni was last seen driving an olive green 2004 Toyota Camry with Utah license plate B154VZ. A $1,000 reward is being offered for information that could lead to Gianni Belvedere.
Police urge anyone with information on the case to call the SDPD homicide unit adult missing person's section at (619) 531-2293 or Crime Stoppers anonymous tip line at (888) 580-8477.