Troy Police Detective Ryan Whiteside said he reviewed video footage of Thomas Cooper's 36 hyperbaric treatments, including the one that killed him.

Luigi Mangione, the alleged shooter of UnitedHealthcare CEO Brian Thompson was in court Tuesday for the second day of his evidentiary hearing.

Body camera video shown in court Tuesday documented how police approached, arrested and searched Luigi Mangione at a Pennsylvania McDonald's — moments that underlie key questions about what evidence will and won't be allowed at his eventual state murder trial in the killing of UnitedHealthcare CEO Brian Thompson.

In the days and hours after Walshe has admitted his wife Ana died, his computer history shows searches for, “how to saw a body,” “hacksaw the best tool for dismembering a body,” and

Mangione's lawyers have argued that items recovered from his backpack, including a 3D-printed handgun and notebook, should not be admissible because police searched the bag without a warrant.

Alleged gunman Luigi Mangione will be back in court Tuesday for a second day of testimony as the judge overseeing his state murder case weighs whether to throw out key evidence.