The lawmaker was assassinated last Saturday during the governorship and State Assembly election in the state.
Akinmoyede, representing Lagelu state constituency, was said to have had a hand in the killing of Olatoye.
The Speaker of the House of Assembly, Rt Honourable Olagunju Ojo, was quoted by Daily Trust to have confirmed that the House was notified through a letter that Honourable Akinmoyede is under investigation.
Ojo said, “I am not aware that he has been taken to Abuja. I am only aware that he is under investigations but I am not sure if he is in Abuja or not.
“Yes, we received a letter that he is under investigation, I am not aware that he has been taken to Abuja or not,” Daily Trust quoted Ojo to have stated.