If what the social worker had said was true, then surely it must be investigated. Moreover, it has nothing to do with implicating Talwars. It has more to do with finding out the motive behind the murders - not just Arushi, but also Hemraj, mind you. It is the media which has potrayed it as 'the Arushi murder case '. As though Hemraj was a non-entity ! Probably in India ur lineage counts even in death ! What motive could that soical worker have by saying such a thing about Hemraj ? And surely that statement does not put the Talwars in the dock...! Its their own actions after the murders which raised many questions.