Japanese actress Sei Ashina was found dead at her Tokyo apartment by family on Monday morning, her agency said, following what investigative sources believe was a suicide.The 36-year-old Ashina, who began her career as a fashion model, starred in numerous movies and TV series including the NHK period drama "Yae no Sakura" (Yae's Sakura) and the police drama "Aibo" (Partner).The Fukushima Prefecture native also landed a role in the 2007 film "Silk," an adaptation of an Italian novel of the same name, in which a French silkworm smuggler and his wife, played by Michael Pitt and Keira Knightley…READ FULL ARTICLE