Los Angeles ( CNN ) -- Visitors to the Los Angeles Police Department website have identified five women depicted in photographs found in a suspected serial killer 's home this summer , but police need to independently confirm those claims , spokeswoman Norma Eisenman said Friday . Authorities would not say whether those women are alive or dead , Eisenman said . A website displaying the photos received 10 million hits in 24 hours after police asked for assistance in naming more than 100 women depicted in 180 photos , which police released Thursday , Eisenman said . Some women were featured in more than one picture , police said . Police have also received more than a dozen phone calls since releasing the photos , they said Friday . Authorities want to know whether a serial killer known as the Grim Sleeper has more than the 10 murder victims that police are now alleging . `` We are grateful for the public 's response to the release of the images , '' a statement said . `` It is our fervent hope that with this response , coupled with the tireless efforts of our detectives , the women depicted in these images will be positively identified . '' In July , 57-year-old Lonnie David Franklin Jr. was arrested and charged with 10 murders and one attempted murder dating to 1985 , and Los Angeles police spent hundreds of hours sifting through thousands of photographs , Polaroids and videotape found in Franklin 's house . The bodies of victims , many working as prostitutes , were all found in close proximity to each other in a neighborhood formerly known as South Central Los Angeles . Franklin , a mechanic who once worked for the LAPD , was arrested in July after police say they matched his DNA with DNA left on some of the victims . Police were led to Franklin after his 28-year-old son got arrested and gave a DNA swab , authorities said . Authorities said they narrowed the confiscated images down to 180 photographs . At a news conference Thursday attended by Mayor Antonio Villaraigosa and Police Chief Charlie Beck , authorities said they had difficulty determining whether some of the women were alive or dead in the photos . `` We can not tell , '' Beck said . `` Obviously , as all of you can see , some of them are animated , and some are not . It 's impossible to tell by the photographs . Robbery Homicide Detective Dennis Kilcoyne said police have a responsibility to try to determine the whereabouts of the women . `` These are clearly photos of women that Mr. Franklin had contact with , '' Kilcoyne said . `` We have a responsibility to identify these women . They may be alive and well , but we need to be certain . `` If there 's nothing we glean from this , we are able to fill in the timeline of Mr. Franklin 's life , and that 's one of our goals as well , '' Kilcoyne said . He declined to talk about the context in which the women 's images appeared . `` The lifestyle or the situation that these women are in would defeat our plea with the public , '' Kilcoyne said . Police are not sure where the women in the images resided , because Franklin 's movements throughout his life are not yet ascertained , authorities said . `` His travel habits are unknown to us , '' Kilcoyne said . `` We believe he spent the majority of his life right here in the city of Los Angeles . ''
NEW : The public has identified five of more than 100 women depicted in photographs . NEW : Authorities still need to confirm those claims . NEW : Website posting the photos gets 10 million hits in the first 24 hours . Photos were found in the home of the Grim Sleeper suspect .