"The inmates of the house cannot get away by simply keeping quiet and offering no explanation on the supposed premise that the burden to establish its case lies entirely upon the prosecution and there is no duty at all on an accused to offer any explanation," the judge said in his order.
"It is a matter of common knowledge that many a murder have been committed without any known or prominent motive. Mere fact that prosecution has failed to translate that mental disposition of the accused into evidence does not mean that no such mental condition existed in the mind of the assailant," the judge said.
He cited the recent judgement of Vivek Kalra versus Rajasthan government which had stated "... It has been observed that where chain of other circumstances is established beyond reasonable doubt that it is the accused and accused alone who committed the offence it cannot be held in absence of motive that accused has not committed the offence."
The judge quoted an order of Supreme Court which had said "... It has been held that where other circumstances lead to the only hypothesis that accused has committed the offence, court cannot acquit the accused of offence merely because motive for committing offence has not been established."
Explaining the absence of motives, the judge quoted two more judgements given in cases from Haryana and West Bengal by the apex court which stated "... Evidence regarding existence of motive which operates in mind of an assassin is very often not within the reach of others.
"Motive may not even be known to victim. Motive may be known to assassin and none else may know what gave birth to such evil thought in his mind."