i shot a woman in the forehead in her garage. took her food and her purse, and then we dumped everything on the way back." >> reporter: both the michaels have pleaded not guilty and are awaiting trial in this case. as for motive? the prosecutors told the court that was as old as time. frank had another woman. and this was no casual fling. they presented evidence of frank's devotion -- the flowers, letters and cards he sent to suzanne leontieff when he wasn't with her. police also discovered frank had spent enormous sums of money on his mistress. >> i think the figure that he had given suzanne was $1.9 million. ultimately we discovered that they had purchased a home together in california. they had purchased a condo in lake tahoe together. he had given her $500,000 in cash. and so it's my understanding that she's a dental hygienist, and i'm not sure what her salary is.