Nick drew up a valid will in 2010 that left all of his estate to his friend AJ. In 2015, Nick ripped up his 2010 will and executed a 2nd will. This 2nd will left $100,000 each to Kevin and Brian, and the remainder of his estate to Howie. However, Nick did not have his 2nd will in 2015 witnessed by two individuals and the will is not valid.

What presumption will the court make regarding Nick's 2010 and 2015 wills? Analyze using uniform probate code