A/N: Here is the fourth chapter of the story. Just so you know I wasn't entirely sure of what to have Callen say to the parents in this chapter, so that's why Sam is the one talking. Like always, read and enjoy:)

Chapter 4- Parental Information

Sitting in their shinny car on the way to visit Doyle's parents Callen turned to face Sam watching the road as he drove and asked,

"Nell seemed to be really shaken up when she first realized that it was Doyle on the video…"

Before he could continue Sam interrupted,

"G, I know what you're trying to say but Nell is not going to let the fact that she knew the suspect years ago compromise her work on the case. She can handle it, she is a tough chick."

Knowing that what Sam had said was true Callen nodded his head,

"Yeah you're right Sam. Nell will be fine. I don't know why I questioned myself when I went through practically the same thing. Nell is smart enough to know when she should be taken off the case, and if it comes to that then she will do it."

Sam nodded his head in response as he stared at the few cars that were in front of him on the road. The last few minutes were spent in silence as they made their way to their destination. Standing on the curb next to where they had parked the car Sam and Callen stood staring at a small two story pale blue house complete with a front porch and a swing. It looked like a nice place to live and grow up.

Having stared at the house long enough the two agents headed up the few steps that led to the front door. Pushing the door bell Sam and Callen waited patiently as they heard someone making their way to the door. As the door opened they were greeted by a middle aged woman with brown hair that was frosted with grey. Smiling at her Callen and Sam waited as she looked over them both before asking,

"Can I help you two gentlemen?"

Knowing that Sam would do a better job with the woman Callen remained silent as Sam showed her his badge and said,

"Yes ma'me I believe you can. My name is Sam Hanna, and this is my partner G Callen. We are with NCIS. We have some questions for you about your son Brian."

Hearing her son's name the woman stepped aside holding the door open to allow Sam and Callen into her home. As they followed Mrs. Doyle through the hall of the tiny entrance way Callen and Sam made a point to get a look at their surroundings. All along the walls and side tables were pictures, and almost all of them were of the same person, Brian Doyle, along with others who must have been Doyle's siblings. Having reached the back end of the house Mrs. Doyle showed them to the added on section of the house. They way the furniture was arranged the room was designated as their living room.

There seated in a giant comfy chair was Mr. Doyle, who, just like Mrs. Doyle, had hair of light brown that was frosted with grey. Waving her hand Mrs. Doyle gave the two agents the sofa to sit on while she sat in an identical chair beside her husband. Wanting to get right to the point of their visit Sam immediately started introductions,

"Mr. Doyle, my name is Sam Hanna, and this is my partner G Callen, we are with NCIS."

Mr. Doyle nodded his head in acknowledgement as he replied,

"Nice to meet you both, I am Zackary Doyle, and you've already met my wife…"

"Helen Doyle, I'm sorry I didn't introduce myself properly at the door. I was in a bit of a shock," Mrs. Doyle interrupted.

With his friendly smile back in place Sam replied,

"That's alright Mrs. Doyle. Now Mr. Doyle, as we've already told your wife when she answered the door we are here to ask you some questions about your son, Brian."

Unlike his wife Mr. Doyle didn't seem surprised by their reason for being there. Placing the newspaper that was in his lap on the coffee table Mr. Doyle looked at the two of them and asked,

"What would you like to know about him?"

Leaning closer to Mr. Doyle from his position of the sofa Callen asked,

"We know that Brian was enlisted in the navy and that he worked on computers creating software for the aircraft carriers and other vessels. Can you tell us what kind of software he was creating?"

Mr. Doyle shook his head no,

"Brian didn't really talk with me about work that much. All he ever told me was that the software was designed to damage other ships and vessels. He left his notes on the table one evening, and when I tried to read it I couldn't understand what was written. The way that Brian wrote it appeared to be encrypted. Probably the only person who can read it is Brian himself."

Hearing his last statement Callen smiled inwardly. Knowing their computer geek colleagues, either Nell or Eric would be able to read and translate Brian's notes into regular English. But the only way that could happen would be if Brian's notes were here at the house. With that thought in mind Callen asked,

"Do you by any chance have some of Brian's notes, Mr. Doyle? Or did he take them all with him?"

Quickly rising from her seat Mrs. Doyle replied,

"If I'm not mistaken I believe I saw one of the notebooks that Brian used to keep his notes in on his desk the last time I placed clean clothes on his bed."

That said Mrs. Doyle all but sprinted out of the family room in search of said notebook. With Mrs. Doyle out of the room both Sam and Callen were able to get a closer look at Mr. Doyle's behavior. Twiddling his fingers in his lap he appeared to be nervous about something. Seeing him do this action Sam asked,

"Mr. Doyle, you seem nervous about something. Do you mind telling us what it is?"

Looking up at Sam's calm face Mr. Doyle sighed as he said,

"Growing up Brian had a few troubles with the law. And in that time my wife and I have had more than a few visits with local law enforcement. You two coming here stating you work with NCIS confirms my suspicions that Brian is once again in trouble. Can you tell me what you believe my son has done?"

Listening to Mr. Doyle's words a look of pity spread over Sam's face, the look became even sadder as he replied,

"I'm sorry Mr. Doyle but I can't tell you anything. Right now we don't have enough information or evidence to support anything. All we have is footage from a security camera of a nightclub that showed your son with a naval Lieutenant who was found dead on Malibu Beach this morning. We know that the Lieutenant and your son both worked with computers for the navy. On the video we saw Brian attack the Lieutenant. We believe he attacked her because she received a grant approval and he didn't. We are hoping that his notes will shed some light on what kind of software he created for the navy."

Just as he finished saying this Mrs. Doyle returned with a beaten up hard covered journal in her hand. As she resumed her place beside her husband Mrs. Doyle handed the journal to Callen. Overwhelmed with curiosity Callen opened the journal and flipped through the pages. Everything that was written on the pages didn't make any sense to him; it was like trying to read a dead ancient language.

After a quick glance at Sam both Callen and Sam extended their hands to the couple as they rose to their feet. With a final promise to keep them informed on what they learned the two agents headed for the door.

As they reached the car Callen's phone rang. Reading the name on the caller ID Callen answered,

"What have you got Eric?"

"After enhancing the photo of the front of the night club from the footage I was able to get the name of the club next to the nightclub where the Lieutenant was killed. The angle of the security camera prevented me from finding the name of the night club where the attack was committed."

"Ok we what's the name of the club next door Eric?"

"The Exotic Candy Shop, and after looking it up I was able to get its address, and I was able to get a map of its location. With that I figured out the name of the night club, it's the Black Light Club."

"That's good work Eric. Give Kensi and Deeks the address of the night club and have them check it out. Sam and I are headed back to OSP, we have something for you and Nell to look at that may help us figure out what kind of software Doyle was creating."

"Alright, will do Callen."

Putting his phone away Callen filled Sam in about Eric's findings as they sped their way back to OSP.