The former pharmaceutical CEO, who became a pariah after raising the cost of a life-saving drug 5,000 percent, has been preening for cameras and trolling on social media, potentially complicating his defense. Since his high-profile arrest in late 2015 when he was led into court in a gray hoodie, Shkreli has been free on bail and free to speak his mind. His Twitter posts mocking a freelance journalist turned so creepy — one showed a fake photo of him canoodling with her — that his account was shut down. [...] on Facebook, he mused about the possibility of being "unjustly imprisoned." Legal experts say there are obvious reasons lawyers want clients facing serious criminal charges to keep quiet. The defense has floated the possibility that it would put Shkreli on the witness stand to try to highlight how he grew up in a working-class Albanian family in Brooklyn, taught himself chemistry, interned at a financial firm founded by CNBC's Jim Cramer and struck out on his own to become a rising star in biotechnology startups. If he needed to raise cash to pay legal fees and back taxes, they argued, why not sell the one-of-a-kind Wu-Tang Clan album that he brought for $2 million or his Nazi-era Engima code-breaking machine?