David Finkelhor completed an investigation of child sexual abuse in daycares in the United States, and published a report in 1988. The report found 270 cases of sexual abuse, of which 36 were classified as substantiated cases of ritual abuse. Mary de Young has pointed out that the report's definition of "substantiated" was overly liberal as it required only that one agency had decided that abuse had occurred, even if no action was taken, no arrests made, no operating licenses suspended. In addition, multiple agencies may have been involved in each case (including the FBI, local police, social services agencies and childhood protective services in many cases), with wide differences in suspicion and confirmation, often in disagreement with each other. Finkelhor, upon receiving a "confirmation," would collect information from whoever was willing or interested to provide it and did not independently investigate the cases, resulting in frequent errors in their conclusions. No data is provided beyond case studies and brief summaries. Three other cases considered corroborating by the public—the McMartin preschool trial, the Country Walk case and the murders in Matamoros, by Adolfo Constanzo—ultimately failed to support the existence of SRA. The primary witness in the Country Walk case repeatedly made, then withdrew accusations against her husband (who remains imprisoned ) amid unusual and coercive inquiries by her lawyer and a psychologist. The Matamoros murders produced the bodies of 12 adults who were ritually sacrificed by a drug gang inspired by the film "The Believers", but did not involve children or sexual abuse. The McMartin case resulted in no convictions and was ultimately based on accusations by children with no proof beyond their coerced testimonies. A 1996 investigation of more than 12,000 allegations of satanic, ritual and religious abuse resulted in no cases that were considered factual or corroborated.