You've solved the case!" Boyd shouted in disbelief, "I don't believe you!"
"Well all the evidence I've gathered together so far, is circumstantial, but I can prove it." Ian told them, a clearly shocked Boyd at a more normal level of volume said
"Lay it out for us then."
"Ok. Now you all know that I've been convinced from the start that it was a woman who was the perp. I, well actually Laura requested the gatelogs for the night of the murder. I looked through seeing what civilian women went through the gate that night, there was only one. Dr Maria Ford, a surgeon with St Thomas's hospital. Her husband is Air Chief Marshal Ford, he's based not far from Fen Valley at Green Valley air base. He was on base that night, he'd had meetings all day with General Mace and was we were told at the O Club. Except nobody remembers seeing him." Ian paused and Boyd took that moment to interrupt.
"Is that all you've got?" Boyd asked incredulously shaking his head in disbelief at the audacity his new forensic pathologist was showing.
"No, I went back to the other case. It seems the military never throws anything away, I got the gatelogs for that night too. Both Dr Ford and Air Chief Marshal Ford were there, though Air Chief Marshal Ford was a Lieutenant Commander at that time." Ian added.
"That is a pretty big coincidence." Grace pointed out.
"Yeah, it could just be a coincidence though if there wasn't another case."
"Another case?" Spence frowned.
"Yeah. Germany, 1988, Warrant Officer 1st Class Jeremy Bates. Same MO. Dr Ford and Air Chief Marshal Ford were there, that time Ford was a Commodore." Ian smiled, he had this nailed.
"That's got to be more than a coincidence." Grace pointed out.
"I agree." Boyd grudgingly added. "However." Ian closed his eyes and prepared to weather the storm. "You are not a detective, and going behind my back and using Laura to help you is even worse. Just because you might be right does not excuse your behaviour!" Boyd shouted. "Next time go through the proper channels!"
"I tried! You wouldn't listen to me!" Ian shouted back, he was tired of putting up with Boyd and his domineering attitude. They were equals, it was about time he was treated like one.
"You didn't come to me with this! You came to me with some half baked theory! World of difference!" Boyd yelled gesturing angrily with his hands.
"By time time I'd got all this." Ian mimicked Boyd's gestures. "You'd shot down my theory so many times I didn't think it was worth it! So I waited until it was open and shut!"
"It's not open and shut! You've got no real evidence now anyway!" Boyd shot back, Grace, Laura and Spence looked on, unsure about how to intervene and intensely uncomfortable with the situation.
"You show what I've got to any judge with a bit of sense, you'll get a warrant! Two DNA samples and case closed! It's as simple as that!" Ian shouted, his anger rapidly dissipating as it always did. "Case closed." Ian added quietly. He turned to leave, he couldn't stay here right now, he needed to cool off properly and he sensed that Boyd would need some time as well. However Boyd interpreted the move as a rude snub.
"Come back here! I'm not finished yet! Don't you walk away from me!" Boyd yelled anger flashing in his eyes. Suddenly Boyd heard what he was saying, it was like someone played the words back in his mind. He was speaking to Ian like he was a rebellious teenager, not a responsible and respected forensic pathologist, it was absurd. "Ian stop!" Boyd shouted after him, unwillingly Ian stopped turning round to face Boyd anger and resentment clear on his face. "Good work." Boyd told him, instantly the tension in the room disappeared as everybody sighed a sigh of relief. "Now let's go see a judge about a warrant."

Later that afternoon Judge Harper granted them a warrant. Spence and Laura went and collected Air Chief Marshal Ford and his wife from their home bringing them back to the cold case offices. As soon as they arrived Ian took the DNA samples hurrying back to the lab to test them. Boyd and Grace decided to interview Air Chief Marshal Ford first, Grace thought that he was probably the weak link.
"Air Chief Marshal Ford, if you'd sit down please." Boyd gestured towards the chair on the opposite side of the table. As soon as they were seated Boyd began his questioning.
"Did you know a Sergeant David Morris?" Grace watched his reaction carefully, upon hearing the name for a second he showed obvious recognition before he regained control of himself.
"No I don't believe I do." Air Chief Marshal Ford replied.
"Really. Then it won't interest you to know that he was murdered four days ago?" Again Grace watched his reaction, he obviously didn't know how to react. Disinterested because he didn't know the man. Shocked because it was murder. He obviously didn't know what to do. In the end he took the middle ground and looked not too shocked and a little interested.
"Murder how horrible. It must be terrible for the family." Air Chief Marshal Ford commented, his reaction was perfect except it had taken him far too long to react.
"Yes. Your wife is our chief suspect." Boyd told him aiming for maximum effect. Air Chief Marshal Ford looked completely shocked for a second, then he started to think about it and it made more sense. All this was clearly visible to Grace, the man wasn't a very good liar and could read like an open book.
"My wife! Why for gods sake? What possible motive could she have?" Air Chief Marshal Ford tried to continue with the shocked impression but was yet again unsuccessful.
"Well we think we know but I'm sure you could tell us." Boyd stated smiling knowingly at Air Chief Marshal Ford.
"Yes it's no use trying to hide the truth. The DNA sample that Dr Carrier took when you arrived will prove it conclusively anyway." Grace added, Air Chief Marshal Ford seemed to deflate under their very eyes.
"Alright, I didn't know you have to believe me. I'd never thought it was possible . . I didn't think she was capable . . It's time I came clean." Air Chief Marshal Ford began.
With all the evidence that they'd gathered, including the DNA samples and Air Chief Marshal Ford's statement Grace and Boyd sat down to interview Dr Maria Ford. Boyd laid all the evidence out in front of her and let her read it which she did. After she'd read it Dr Ford looked up, her face neither happy nor sad but peaceful.
"Yes I did it and what's more I'm glad I did it." Dr Ford told them, Boyd and Grace shared a look, case closed.