1 / 12 Tricia Pacaccio, dressed as a bridesmaid for an aunt’s weddingPhotograph: Courtesy of the Pacaccio family 2 / 12 Michael Gargiulo, in a photo taken by California police in 2008. A neighbor of the Pacaccios, Gargiulo was a longtime suspect in Tricia’s killing.Photograph: Courtesy of the Santa Monica Police Department 3 / 12 Rick and Diane Pacaccio, Tricia’s grieving parents, stand outside their Glenview home, the scene of the murder 18 years ago. “We just want justice for our daughter,” says Diane.Photograph: Katrina Wittkamp 4 / 12 Tricia Pacaccio, in her 1993 senior photo from Glenbrook South High SchoolPhotograph: Courtesy of the Pacaccio family 5 / 12 Ashley Ellerin, who was slain in CaliforniaPhotograph: Courtesy of Los Angeles Police Department Hollywood Homicide Unit 6 / 12 Maria Bruno, who was slain in CaliforniaPhotograph: Courtesy of Los Angeles County Sheriff’s Department Homicide Bureau 7 / 12 Gargiulo with an unidentified woman. Los Angeles police fear she may be another victim.Photograph: Courtesy of Los Angeles County Sheriff’s Department Homicide Bureau 8 / 12 Tricia with her brothers, Thomas (center) and Doug. A friend of Doug, Gargiulo spent time inside the Pacaccio home, though he was never at ease, instead “pacing back and forth like a caged animal,” recalls Tricia’s mother.Photograph: Courtesy of the Pacaccio family 9 / 12 A newcomer to Hollywood, Ashley Ellerin had enrolled in the Fashion Institute of Design and Merchandising and dated Ashton Kutcher, then a rising TV star.Photograph: Courtesy of Los Angeles Police Department Hollywood Homicide Unit 10 / 12 Ashley EllerinPhotograph: Courtesy of Los Angeles Police Department Hollywood Homicide Unit 11 / 12 Gargiulo after his arrest in June 2008 for the attempted murder of a petite 28-year-old California woman named Michelle MurphyPhotograph: Courtesy of Los Angeles County Sheriff’s Department 12 / 12 Before her December 2005 murder, Maria Bruno (shown here with her children) told friends that a “weird guy” had been watching her.Photograph: Courtesy of Los Angeles County Sheriff’s Department Homicide Bureau Photos: Did Alleged Hollywood Ripper Michael Gargiulo Kill Tricia Pacaccio June 15, 2011, 4:45 pm Related: Did Alleged “Hollywood Ripper” Michael Gargiulo Kill Tricia Pacaccio? »