An intense police investigation initially failed to uncover either the identity of the mystery gunmen, or a motive for the crime. Police were interested in Thompson's former business partner Michael Frank Goodwin who repeatedly refused to pay a more than $768,000 settlement he owed Thompson. Goodwin and his wife bought $275,000 worth of gold coins two months before the Thompsons were murdered and wired $400,000 to banks on the island Grand Turk and Caicos. Goodwin and his wife then left the country five months after the murder on their yacht and did not return for more than two years.