Doctoral student Zhenhao Zou, 28, is now a convicted rapist following a horrific trial in London. Prosecutors say Zou met women on dating apps in both China and the UK, lured them back to his residence, then drugged and raped them. Investigators found dozens of videos of the rapes in question on hard drives and SD cards. Law & Crime’s Jesse Weber analyzes the evidence against Zou that is expected to put him away for decades with UK litigator Nick Brett.