Tali landed in the computer navigated mini shuttle. The Normandy was in need of mechanical supplies and Shepard tasked the quarian engineer with retriveing them from the Citadel. This required travelling through some of the more dangerous areas of the wards, but nothing Tali couldn't handle. She traversed the dark alleys with confidence. At least until she starting hearing the noises, they were always faint, but always there. Faint footsteps approached her from behind, she wheeled around, primed her Carnifex and readied her omnitool to summon her trust drone, Chitkica(one of you guys gotta tell me how to spell this crap).
There was nothing to be seen, jsut as she prepared to put her pistol away a strong hand grabbed her shoulder, she let out a yelp and wheeled around. "Legion!? Is that you! Why are you here!?", Tali questioned. "Shepard-Commander had second thoughts on sending you here alone, we were tasked with ensuring this creator's safety.". "Oh, how sweet" thought Tali. though she was still upset about Legion sneaking up on her. But now the faint hum she heard before was louder, as she began to turn around an elbow materialized out of the air, striking her in the throat, her wind pipe collapsed and she struggled for air as she fell to the ground. As her vision cleared she saw her assailant, "She...pard...?", she managed. "Shepard-Commander cannot be reached creator Zorah", Legion replied. Tali was confounded, "How, how could he do this to me, I shared myself with him, let him see my face!". "I'm sorry Tali, I just can't let something so ugly keep on living." Legion pointed his rifle at her and unleashed a flurry of rounds into her chest, tearing her rib cage open. "What should we do with the corpse Legion?", Shepard asked the geth. "We are building concensus, Shepard-Commander.".
Then Shepard got a great idea, he knew the Citadel maintained gravity by rotation, anything suspended in the air would fly to the cielings, Shepard and Legion lifted the melting body and tossed it into the air. It ascended, gaining speed until finally impacting the Citadel's outer rim, the carcass erupted like an opgan filled water balloon. "Feel like going out for drinks Legion?", Shepard asked. "Yes.", came the reply. The galaxy was safe, at least for the moment.