Earlier in her testimony on Monday, she had told the court how Baba Ijesha allegedly defiled her foster child leading to the child being distracted in school.
Stimler admitted to conspiring to violate the Foreign Corrupt Practices Act (FCPA) and commit money laundering at a hearing in Manhattan Federal Court, New York.
Buhari, who left Nigeria on Monday to attend the Global Education Summit on Financing Global Partnership for Education (GPE) 2021-2025 in the UK, was not sighted at the Abuja House.