Anything is possible. Common sense observation of the crime scene and events aftermath points out finger at the family rather than any one else. Lawyers are trying to play with technicalities than with facts. Whoever has killed has killed with such a precision. He/They may have used surgical gloves to avoid finger prints, they have taken time to collect all important things like weapon or tool used to kill, mobile phones etc. Definitely they were not in a hurry. The family version of events looks like a fairy tale.
