To give context to the situation, that D-Class was my trustee research assistant that was assigned to me by an Executive Researcher. He was helping me for a while, providing good thoughts and help on the tests I was doing. Sometime after he was assigned to me, a cognitohazard was spotted on the site and a Code 4 was called. When the Code 4 was called, I felt the safest and most appropriate action was for me and my assistant to get away from where the cognitohazard was called and to equip SCRAMBLEs, and the only place I knew to get them was the LCZ armory. I was informed after that the medbay armory had them but I have never gone in there so I was unaware of that fact. When me and my assistant went inside to get SCRAMBLEs, that's when the A-1 came and killed my assistant, detained me, and had me arrested.
Please note that after speaking with ISD regarding the arrest and the charges, they were both deemed invalid and I was told that I shouldn't have been arrested in the first place.