That may well be true and I could be wrong. However, maybe the OP was referring to Purdue Professor Turco who was interviewed by Lead Det Holeman.
It's not favorable that the Defense was attempting to suppress the gun evidence but it exposed, allegedly, that two officials willingly lied. The story is found at the link highlighted.
OCT 4, 2023
"On Sept. 18, the defense submitted a filing outlining why they believe the girls were "r**** s****" and leveled accusations against lead detectives of ignoring or intentionally suppressing that evidence for years. The filing was made as part of efforts to suppress evidence about a gun found inside Allen's home.
The next day, Sept. 19, the defense claims Holeman was able to find the
Purdue professor, JeffreyTurco, and interview him. Holeman allegedly said he was working to setup the interview with Turco for several weeks. The defense claims that would have happened at the same time the prosecutor claimed they could not identify the professor. "