Waiting for You to Call Me Dad

Upon hearing He-El, Trunks carefully examined the shell Cell had shed, then opened the time machine for inspection. Inside, he found not only his own DNA, but also most of the data belonging to Cell's shed shell. The shed shell's data accounted for a very large portion of it. "My counterpart from another Parallel Universe is already dead!" Trunks made a shocking deduction. From the DNA and damage he found inside the time machine, he arrived at a fact that stunned him. "He was killed by this monster!