Tierney has been a regular commentator on Court TV (TruTV) since its founding in 1991. In that capacity, he has commented on a wide range of trials from the celebrated cases of the early 1990s to the recent military tribunals in Guantanamo Bay.
Tierney has been a recurring commentator on Court TV (TruTV) since its founding in 1991. In this role, he has discussed numerous trials, including those from the prominent cases of the early 1990s to the recent military tribunals at Guantanamo Bay.