These are 1.5 x 2 inches in size . They are reproduction of the original collection of photographs kept by the killer.
Many to still have to be identified to see if there even alive or not. Hundreds of photographs were found in his possession.
Alcala compiled a collection of more than 1,000 photographs of women, teenage girls and boys, many in sexually explicit poses. In 2016 he was charged with the 1977 murder of a woman identified in one of his photos. Alcala is known to have assaulted one other photographic subject, and police have speculated that others could be rape or murder victims as well.