|Police in Los Angeles are asking the public to assist them in identifying around 160 women [Reuters]
Police in the US city of Los Angeles have released photos found at the home of a man accused of the "Grim Sleeper" serial killings.
Close to 160 women are depicted in the images and police announced on Thursday that are trying to identify them.
Lonnie Franklin Jr has pleaded not guilty to the murders of 10 women from 1985 to 1988 and from 2002 to 2007.
The apparent 14-year pause in the alleged crimes led to the nickname "Grim Sleeper," though detectives suspect Franklin could be involved in other deaths.
Police also said they found numerous sexually explicit photographs and home videos of scores of women when they searched the home of the car mechanic.
Authorities also sought the public's help when they released images of about 160 women and asked anyone who recognised them to come forward.
"We certainly do not believe that we are so lucky, or so good, as to know all of his victims,'' Charlie Beck, the police chief said.
"We need the public's help.''
The photos and videos were found at Franklin's home and garage during a three-day search after his July arrest.
"Now that we know who he is and what type of activity he is involved in with women, we are very concerned for everyone in these photographs,'' Dennis Kilcoyne, a detective, said.
Police displayed the photographs for media and have made the images available online.
By Thursday afternoon, the LAPD's website had slowed to a crawl after its Texas-based server was strained by a massive surge in people trying to click through to the pictures.
In almost every photo, the subject is smiling at the camera. Some women could have been naked but it is difficult to tell in the tightly cropped images.
Others were photographed outside as part of a group photograph.
The women appear to be willing participants in what police said were sexually explicit images.
"It baffles me how he is so successful at getting women to do what he asks them to do,'' Kilcoyne said.
"It's not like we have pictures of him holding a knife to someone's neck.''
Detectives said the photos span decades and were taken on 35mm film, Polaroids and digital cameras. The women range from young teens to their 60s.
Except for two or three white women and a Latina, all the women are black.
Some appear to be asleep, and several known victims of the serial killer were said to be prostitutes.
Detectives would not say if any of the women photographed might have been involved in the sex trade.
All of Franklin's alleged victims were killed within a few miles of his home, where neighbours knew him as a talented backyard mechanic.
Police also have said they suspect Franklin in the death of a man who may have discovered he was a killer. In addition, they are reviewing more than 30 other cold-case files to see if they can tie Franklin to other slayings.
Franklin was taken into custody last summer after his son was arrested and swabbed for DNA. Using a technique known as a familial DNA search, the sample came back as similar to evidence in the serial killings, ultimately leading police to Franklin.