Callen decided to put all those memories behind his back. Those days were he actually believe that he could be a normal guy were gone. Ended the moment that she left him. He couldn't let that those memories affect his day. He is a NCIS agent, an undercover agent. He can't let that all of this affect his life.
He ends up getting ready for going to work. He remembered those happy months that he has been with Kensi. He never understood why she left. Everything was fine until that day. First she left and then Sam saw him vulnerable. Crying.
He left his house and drove to the office. Those memories still hunting him while he drives. He loved Kensi, she was his safe port. During work he could be anyone but when he returns home he was G Callen, Kensi's men. He left all does things behind. He actually believed that he could be happy.
When he arrived to office he walked through the door and started to walk to his table and do his job. Right after he started to work in the computer he heard Eric called them. He, Sam, Dom and Heather (the agent that replaced Kensi) went to the op room and the four of them noticed that Hetty was in a very bad mood.
"So Hetty, what is the big problem?"
"We have a new case. And this one comes with a major problem."
Callen didn't like this. Every case had a complication but Hetty was never this mad.
"Hetty, why I have the feeling that this case is different."
"G, you don't tell me you have this kind of feelings?" Sam started with the jokes.
"It's not time for jokes Mr. Hanna." She was irritated.
"What is so serious Hetty?" Heather had figured it out just like I did. Wherever this problem was, it was big and bad.
"The marine was killed near a church. With 5 bullets in his chest."
"That seems normal. But why this case is our type of case?" Sam asked. He, Callen, Heather and Dom didn't understood why this case us ours."
"Because of the motive. The reason why he was murderer." Hetty was getting nervous. She didn't like this case. The reason? She had the feeling that somehow this would affect the team. "He was killed near a church…"
Hetty was cut by Dom
"Hetty we already know that."
Hetty was now mad. She hated that someone interrupt her in a middle of a sentence.
"You already knew the rest if you let me speak."
"Sorry Hetty."
Hetty took a deep breath before she continues.
"Where he had left a three month year old baby."