The woman alleged last month that the death of Sandra Cantu might not have happened if detectives had taken her sister's case more seriously at the time.
Police have denied mishandling the case.
Everyone connected to the Huckaby case, including police, potential witnesses and lawyers and family members for both sides, have been silenced under a gag order. Autopsy results and most court motions also remain sealed, giving little information about what kind of evidence the state has against Huckaby or exactly how Sandra Cantu died.
Earlier this month, a worker on the dairy farm where Sandra's body was dumped was given $21,643 in reward money by the Modesto, Calif.-based Carole Sund/Carrington Memorial Reward Foundation, which was designated as the collection agency for reward money and donations in the case.
Despite the gag order, other allegations have emerged about Huckaby since her arrest.
The Tracy Press, which helped break the investigation of Huckaby as a suspect, has reported that Huckaby is a "person of interest" in two 2007 arsons in La Palma, Calif., about 350 miles away from Tracy.
The court also canceled a hearing in April, originally requested by Huckaby's lawyers, to exhume Sandra's body for a second autopsy. The request was dropped last month and the prosecution's motion against the order sealed.
Public defender Peter Fox told the San Francisco Chronicle that the deputy public defender handling the case was told by the county's chief medical examiner that "the relevant samples" on which the defense would conduct independent tests to determine whether the girl had been raped "were preserved," and were not interred with the girl's body in a mausoleum.
"It will not be necessary to disturb the child's remains," Fox told the Chronicle. "From a human point of view, certainly, it's nice not to have to do that."