Meet the ultimate TF2-inspired engineering project: a level two sentry turret! This AI-powered, face-tracking minigun can fire over 200 rounds per minute. Built as part of the Maker Secret Santa gift ...

Mr Heller, who has played with Swift for more than 15 years, said the tour required “the very best I am capable of” and praised Swift for “trusting me with my part of your vision”.

After a high-profile 29-day search, the 19-year-old's body was found near the mountainous village of Masca and a post-mortem examination revealed he had died from 'traumatic head injuries'.