( CNN ) -- The mother of missing Maine toddler Ayla Reynolds on Tuesday disclosed new details about purported blood evidence discovered in the home where the 20-month-old was reported missing December 17 , 2011 . Trista Reynolds told CNN that police shared the information with her in confidence last January , but in revealing details of that information now , she says she felt it was time `` to let the world know '' about it . `` What I thought right off my head was it was a murder scene , '' Reynolds told CNN in a network exclusive interview , referring to police photographs . `` There was just like Ayla 's blood ... everywhere , '' she added . Reynolds told CNN she was shown photographs of what appeared to be her daughter 's blood discovered on the child 's slippers and on a doll in her bedroom , and a silver-dollar-sized stain on a living room sofa . Mother reveals secret evidence . In the basement , where Ayla 's father , Justin DiPietro , slept , Reynolds says police allegedly found more of Ayla 's blood and on the walls , the floor , in a `` fist-sized stain '' on the mattress and sheets , on the tongue of DiPietro 's sneakers and on a wood pallet leaning against a wall . An additional spot of what appeared to be Ayla 's blood was found on a child 's car seat in DiPietro 's vehicle . Reynolds said police showed her some photographs of purported blood stains visible in the photos only because of chemical called luminal . She said those images in particular were so disturbing , she could bear to see only a few . `` I had to actually ... I shut it off . I asked them to stop . And there were three or four more pictures that they wanted to show me , and I just ... I ... I could n't , '' she told CNN , her voice trailing off . Publicly , Maine State Police investigators said in January 2012 , that they had identified Ayla 's blood in the basement , describing it as `` more ... than a small cut would produce . '' According to Ayla 's mother , she is making the disclosures in frustration that her daughter has n't been found , and she wants three adults who were in the home when Ayla vanished -- the child 's father , his girlfriend , and his sister -- arrested . Reynolds posted details of the information police shared with her on her website devoted to her missing daughter . `` All three of those people were in that house that night ... all three of them know what happened to Ayla , and all three of them should be prosecuted for it , '' Reynolds told CNN . DiPietro and his family maintain Ayla was abducted . Is Ayla dead ? Police say there is no evidence of an abduction from the house , which belongs to DiPietro 's mother . They 've also said they do n't think Ayla will be found alive . Over time , authorities have repeatedly said they believe there was foul play and that the adults who were home that night have n't told everything they know . `` I 've said it in the past , their versions do n't pass the 'straight-face test . ' That statement stands , '' Maine State Police spokesman Steve McCausland recently told CNN . DiPietro 's mother and Ayla 's grandmother , Phoebe DiPietro , stands by her son . `` Everyone 's standards for what is or is n't believable is different , '' DiPietro said . She would n't comment on the alleged blood evidence . `` Trista can say and do what she wants , '' Phoebe DiPietro wrote in a statement provided to CNN . `` We choose to hold on to hope that Ayla will be found , `` she added . McCausland said because of the ongoing investigation , which he describes as the biggest in state history , he wo n't comment one way or another on Trista Reynolds 's disclosures including whether they 're accurate or could adversely impact the investigation . `` We understand her frustration . Trista has a right to be frustrated . She is Ayla 's mom . At times during the past 21 months we 're frustrated too , '' McCausland explained , `` but we remember who we are working for . And we 're working for Ayla . And that reinvigorates the investigative team . '' Organized by supporters of Ayla 's mother , an online petition drive has been mounted urging Maine Attorney General Janet Mills to arrest Ayla 's father , his sister , and girlfriend in connection with the toddler 's disappearance . But Deputy Attorney General William Stokes said that is not how investigations are conducted . `` To allow this type of pressure to influence either the investigation or prosecution undermines the integrity of the investigation or any prosecutor 's decision in the future , `` Stokes tells CNN . `` It simply can not happen . '' Items that might be linked to case recovered .
Toddler Ayla Reynolds was reported missing December 17 , 2011 . The mother of the 20-month old tells CNN of details about purported evidence . Reynolds says she was shown photographs of what appeared to be her daughter 's blood . The photos were taken in the house Ayla shared with her father and other relatives .