Why would she have left DNA at all? What form? Spit? Blood? What are the odds that any other kid in Europe, Asai, or here on a foreign education year abroad would be involved in the brutal murder of a roommate? A zillion to one. Guilty. You’re wrong.
Sure....a suburban college kid with no history of violence gets involved in there-way sex with a jobless criminal from Africa & hacks her roommate to death.
Huh? So a roommate is -always- guilty?