Responsible for the deaths of nearly 60 individuals in Las Vegas this past Sunday, mass shooter Stephen Paddock's motive is still a mystery. However, a recent revelation from investigators may introduce a new lead; a criminal plotting pattern,  where Paddock was on some sort of killing spree.

Photo: NBC News

It is reported that, in August, Paddock booked not one but TWO hotel rooms in downtown Chicago, facing the location of the popular music festival, Lollapalooza. Both rooms had the same checkout date – Aug. 6 – the last day of the festival. The festival featured performances from Chance the Rapper, Lorde, Wiz Khalifa, Cage the Elephant and others. Is this a coincidence? We can't be so sure.

Photo: Lollapalooza

As FBI investigators continue to seek out a killing motive and victims and families aim to heal, it is unclear whether it will ever be known why 64-year-old Paddock decided to go to such extreme measures to harm anyone, including himself. Our thoughts ,prayers and offers of assistance continue to be with those who lost loved ones as well as the survivors.