Board Thread:Wiki-Related Questions and Answers/@comment-72.128.73.89-20130511214558

Whale mentioned in episode 12 of season 2 that, "Science also has a price too along with magic." Seeing how Greg and Tamara were using it to kill Regina, it looks like their hearts and souls have also been corrupted by that influence. Like Dark magic, Science is a way that can be used for good (Case in point, reviving the dead to make people happy.) or Evil (Using its power to torture or kill people.) But next season there will probably be an episode where Greg first meets people who also believe. There will also be an episode where he and Tamara first meet. And in one of those, it will explain why Tamara just loves to use that specific taser to kill people. 