tragic event is absurd. he had absolutely no plan. none. and if there's no plan afterwards, i think it leads you to the conclusion that there was no plan beforehand. >> reporter: really? here was the prosecutor's closing. >> i will say this, the more charitable view of motive would be that ms. opdycke and mr. oakes, perhaps they really did fear for their safety for some reason, but the evidence doesn't support it. now, the less charitable view is that the defendant set out on a path of cold, calculated execution. was it because there was some feelings of revenge after this incredibly contentious divorce? was it to prove himself to ms. opdycke for some reason? the fact is we'll never know because the defendant has taken all steps necessary to obscure the truth. and the deceit needs to stop now. thank you. >> reporter: up to the jury