Olathe ? Witness after witness revealed Monday that the only legitimate signatures on an adoption prepared by John E. Robinson Sr. were those of his brother and sister-in-law.

Don Robinson said that after 10 years of marriage, he and his wife, Helen, were still unable to have children. John Robinson agreed to help, his brother testified, and the couple gave him $5,500.

On Jan. 10, 1985, the couple flew from Chicago to Kansas City, signed some documents and met their new daughter, Don Robinson testified in Johnson County District Court.

It was 15 years later that the couple learned that the child they raised as Heather Tiffany Robinson was really Tiffany Stasi whose mother, Lisa Stasi, John Robinson is accused of killing.

John Robinson, 58, of Olathe, is charged with first-degree murder in Stasi’s disappearance and presumed death; her body has never been found.

He is also charged with capital murder in the deaths of Suzette Trouten, 27, and Izabela Lewicka, 21. Their bodies were found in barrels next to a storage shed on John Robinson’s 16.5-acre property near LaCygne.

Helen Robinson testified that she and her husband tried several adoption agencies in Illinois before turning to John Robinson. Her brother-in-law said he could help.

When the couple learned that John Robinson was arrested, they began to become suspicious about their daughter’s adoption.

Helen Robinson testified that their daughter found a missing person report for Lisa and Tiffany Stasi on the Internet that included a photo similar to the one they received in 1985 from John Robinson when the adoption occurred.

The couple said they trusted John Robinson. They allowed him to handle all arrangements because the attorney, Doug Wood, was “kind of cranky” and it would be easier. The Robinsons never attended any adoption hearings or were interviewed by social workers, though Don Robinson testified that the couple had expected to be questioned but figured Kansas laws were different.