Eric had already 'dug up dirt' on Landon Chastain after receiving the tip from LAPD, prior to their 'meeting' with Director Vance.

"Well," he began, "It appears that Chastain had a family, a wife and two kids, as Director Vance mentioned. Landon and wife, Carli, had been married for nine years. According to court records, the kids are three and five, and Mr. Chastain had filed for divorce on two separate occasions."

"Why?" Kensi asked curiously.

"Documents claim that he accused Carli of fraud."

"What kind of fraud?" Deeks questioned, brow furrowed.

"It doesn't say," Eric shook his head, reading further. "It cited civil differences and they were granted a temporary separation with both filings, stating that they agreed to try to work through whatever it was."

"Who had custody of the kids?" Kensi prodded.

Eric squinted as he read deeper. "It appears they had joint custody."

"Got an address, Eric?" Kensi asked.

"Uploading it to your GPS now," he smiled.

Kensi turned to Deeks. "Looks like we're going to pay Mrs. Chastain a visit."

Callen pulled up to Arkady's residence and expunged himself from his vehicle, an angry expression on his face.

He walked up to the door and turned the knob, not even knocking. He knew it would be open, and he walked inside.

"Arkady?" He called out, his voice completely serious.

A man dressed in a sleek, black suit appeared at the bottom of the staircase, pointing a gun at G.

"Stop where you are or I'll shoot!"

"Wouldn't be the first time I've made friends with a bullet or two," Callen joked.

The man cocked his firearm and Callen spoke again.

"I'm a business partner of Arkady. He's expecting me. Let's just say there's some... loose ends... we need to tie up."

"Fyodor," a familiar voice called out, "it's okay. Mr. Callen is an old friend of mine."

The man lowered his weapon and G. made his way down the stairs.

"I see you've changed up your digs a little since my last visit, huh?" Callen glanced around as if he was actually interested. "Nice. I like the new touches. You know what else has changed up?" Callen walked closer and threw a file on Arkady's desk. "Our other old friends. Yeah," he nodded. "See, we're still breathing. They're not. For some odd reason, I have a gut feeling that you have an answer as to why."

Arkady swiftly glanced through the file and shook his head. "I know nothing about this."

"Uh-huh," Callen responded sarcastically, not in the mood for Kolcheck's games. "How many times have I heard that from you before? You were the one who tried to kill them in Russia ten years ago!"

"Yes," Arkady nodded, "you are correct. Ten years ago. The past is in the past. What makes you so certain that I would want anything to do with them now?"

Callen stared straight into his eyes. "I don't know, Arkady. You tell me."

Arkady locked eyes with him momentarily, never flinching. After a few seconds, he glanced away, chuckling. "It is very unfortunate what happened to them, but I'm sorry, this is not my doing."

"Really?" Callen shook his head with an unamused chuckle. "All signs are pointing towards you. You think of them every day, don't you? Every time you take your jacket off or roll up your sleeves. You see their faces. You hear the shots. You remember how it felt that day when they lodged two bullets in your arm, and you would've bled out, if not for me. A few more inches, they would've nicked your carotid. How's your shoulder feeling, by the way?"

Arkady shook his head. "Again, that was ten years ago, and you're wrong. I don't think about them. I let it go years ago, just as you should."

"Have you forgotten that you owe me one? I saved your ass last year, remember?"

Arkady laughed, "Can't repay someone when you don't have any information as to what they're inquiring about. By the way, how are you feeling?"

Callen simply glared at him, then turned away, heading for the door.

"Callen," he called out with a chuckle, "you need to let old wounds heal and forget about them."

G. stopped in his tracks and turned around. He walked over to Arkady and drew his weapon. "Scars never heal. You, of all people, should know that by now."

"That's because you don't let them," Arkady stated simply.

Callen clenched his teeth and the barrel of his firearm made firm contact with Arkady's chest as he gripped the man's shoulder with his other hand. "If I find out you had anything to do with this..." He trailed off, eyes red with fire, and pushed Arkady away from him, holstering his weapon as he exited the residence.

Meanwhile, Kensi and Deeks arrived at the residence of Carli Chastain. They walked up and knocked on the door.

When the woman opened the door, Kensi spoke first. "Mrs. Chastain?" Carli nodded. "Kensi Blye, NCIS. This is Detective Marty Deeks. We'd like to ask you a few questions regarding your late husband."

"Late?" Carli looked between them both, completely confused. "Landon i-is... dead?"

Kensi and Deeks glanced at each other and Deeks spoke, "Mrs. Chastain, we're very sorry for your loss, but we would greatly appreciate your full cooperation."

Carli put a hand over her mouth, seemingly completely in awe of the news she'd just received.

Kensi gave Deeks a look, letting him know that she appreciated him trying to be considerate, but that she would take it from here... with a softer approach.

"Mrs. Chastain-"

The woman cut her off. "C-Carli," she responded, visibly shaken.

"Carli," Kensi nodded as she corrected herself, "may we... come in?"

Carli nodded and led them to the couch, which she nearly fell into, not fully able to comprehend her current reality.

Kensi sat next to her and Deeks sat across from her on another couch.

"What h-happened to Landon?"

Kensi frowned slightly, empathizing with her. "Mr. Chastain was in an accident a few hours ago."

Kensi was interrupted as her text tone rang. "Excuse me," she offered a smile as she checked her phone. It was from Deeks, who was still sitting directly across from them.

She read the text. "Didn't Vance say his relatives said he had no enemies? If PD talked to the relatives, they would've talked to her first. It's an act. She knows."

Kensi blinked and cleared her throat. "Carli, when was the last time you spoke with your husband?"

"Last night. We got into a fight and he stormed out. He does that a lot. It's better for the kids when he leaves."

"Mr. Chastain had anger issues?" Deeks jumped in.

"Landon," she corrected them. "It depended on the night, and whether or not he was drinking. He's a great guy. He really is... was." Carli frowned. "I don't think I can do this right now."

"Carli," Kensi placed a gentle hand on her shoulder, "are you sure this is the first time you're hearing about your husband's death?"

Carli didn't answer.

"Carli?" Kensi prodded.

"Fine. The police officers came to my door shortly after it happened. They said they were investigating the accident, but that he appeared to be drinking. They found bottles at the scene. I didn't want to deal with that. I've begged him to stop... For me... For our children. It's just too much!"

Deeks looked at Kensi and she glanced back at him, sighing.

"Carli," Kensi continued, "we have reason to believe that your husband was murdered."

"Murdered?"

"We have evidence proving that this was no ordinary accident. We would really like you to come with us so that we could ask you a few questions," Deeks added.

"No," Carli shook her head. "We're done here. I'm not answering any more questions without my lawyer."

Deeks and Kensi locked eyes, knowing that this was not going to be an easy task.