This is something I just hypothesized. What would happen if Ari hadn't missed Abby? I know it's probably physically impossible for a bullet to do that but still. Also this could be a one shot or it could be something I carry on for some time, let me know if you want to hear more.

Tony's eyes wanted to close, their lids were heavy and tauntingly dry. He had wanted to cry, in private of course but he couldn't find the time nor muster up the energy or courage to think of the passed day's events. Tony was the kind of person who needed to really think sometimes, even if he didn't look like it. He knew that if he had been alert he might have spotted Ari, could have saved her. Anything to save himself pain, right? He chuckled mirthlessly.

"I'm gonna miss her Tony." Said Abby, reaching up for a hug.

"Me too Abs." He truly would. Where had his partner gone? She had suddenly become lifeless beside him. Most shocking, Kate's still warm blood had splattered his face like a canvas. Abby was wrapped up in his arms when a shot was fired from outside. Before Tony could flinch Abby's glass shattered and she went limp in his arms. His instincts kicked in and he dove for the wall carrying Abby's motionless form with him.

"Abby! Abby!" He shook the woman who moments ago had been living in his arms. She too had a bullet through her forehead. Tony's stomach almost betrayed him, there was still a single tear on her cheek.

"No! No! No!" He whispered to Abby as he pulled her into his arms.

"Get down!" Gibbs shouted, as he thundered into the lab, turning off lights as he came. He finally burst into the part of the lab where Tony and Abby had been. Gibbs swiveled to assure himself that Abby was unharmed. Cold crept from his gun-gripping fingertips to his clenched jaw and down through his toes upon seeing what had transpired in his brief absence. His senior field agent sat beneath the windowsill, cross-legged. He cradled Abby's lifeless form close to his chest. Slowly Tony looked up to face his boss. Gibbs recognized the look on his young face as one of pure pain and anger. Once again his face was splattered in blood. The older agent raced to where Tony, sat sliding onto his knees like a baseball players triumphantly sliding into home, though his face carried the expression of none such character.

"Boss," Tony said in a voice that was saturated with grief, "I've never lost anyone before."

"I know Anthony."

So? Want more?

Let me know please.