Gareth Evans

Gareth Evans was a technician working at Torchwood 1.

Biography
Gareth was cybernetically altered by Cybermen from Pete's World. He was killed when his earpiece was overloaded by a signal from the Tenth Doctor. (DW: Army of Ghosts)

Gareth's eagerness to have a "snog" with Adeola Oshodi lead him to his death when he went off to find a secluded place. Taking longer than Adeola intended she followed, leading to her death also.