(CNN) -- Hoping to solve numerous cold cases, authorities on Thursday released more than a hundred photos of unidentified women and children found in a storage unit that belonged to a serial killer who appeared on "The Dating Game." Investigators are trying to determine if some of the people in the pictures were victims of Rodney Alcala, 66, who was convicted in February of murdering a child and four women between November 1977 and June 1979.A jury this week recommended a death sentence for Alcala, who appeared on the popular dating show in 1978 as Bachelor No. "We balanced the privacy concerns of those depicted in the decision to release these pictures," Orange County District Attorney Tony Rackauckas said in a statement.In 1968, Rodney Alcala, better known as “The Dating Game Killer,” lured eight-year-old Tali Shapiro to his Hollywood apartment.Police were quick to arrive on the scene after a concerned motorist witnessed Alcala taking little Tali. Alcala fled before he could be apprehended and went to New York."The idea is to figure out if these are other victims that belong to other cold cases and if they are we can hopefully bring some closure to these victims' families," she said. Alcala used his photography as a ruse to get close to his victims." Authorities already believe that Alcala may be responsible for deaths in New York, Schroeder said. After serving a 34-month sentence, he was released.In November 1977, Alcala raped, sodomized and murdered Jill Barcomb, an 18-year-old New Yorker who had recently moved to California, the district attorney said.
See all the photos A few pictures of men were also found among the portrait-style photos that were discovered in a storage unit that Alcala kept in Seattle, Washington, said Susan Kang Schroeder, a spokeswoman for the district attorney's office.
The locker also contained earrings that belonged to 12-year-old Robin Samsoe, who Alcala abducted and killed in 1979, Schroeder said.
The discovery of the earring in the locker has raised speculation that there may be other victims or that the photographs were trophies to Alcala, she said. Alcala is a predatory monster and we believe that he destroyed many lives everywhere he went." According to the Orange County District Attorney, Alcala was convicted in 1972 of kidnapping and molesting a child in Los Angeles County in 1968.
“The picture, even if you don’t recognize her, is a distinct part of Wyoming recognizable to anyone from here,” said Dan Erramouspe, the Sweetwater County attorney.
The photo was among several publicized by Huntington Beach detectives after Alcala was sentenced to death in 2010 for killing four women and a 12-year-old in the late 1970s.
Prosecutors said that Alcala "toyed" with his victims, strangling them until they lost consciousness, then waiting until they revived, sometimes repeating this process several times before finally killing them.