>> it was something sexual. >> weinhardt said the conversation ended only when jason stopped texting, text, until 10:50 am. at which point the tex traffic goes dark. >> quiet for 13 minutes, until jason made a phone call to his sister. telling her their mother was dead. >> he weinhardt argued that was more than enough time to kill his mother and scary robbery. >> plaintiffs called jason carter. >> then came the moment so many have been waiting. for jason, the favorite son in his own words, telling the jury about seeing his mother did. >> i couldn't believe what i found. >> weinhardt confronted you said about the affair. >> you did in a french residents. in cars. even in your own. house >> correct. >> you became a practice, skilled and chronic liar. >> correct. >> now bills lure try to prove motive. it was, he argued, about money. the jury was told jason was a spendthrift. >> he puts money into motorcycles, nice cars, and trips and vacations. >> at the same time, jason was expanding his farm operation. where did all that leave him? more than half 1 million dollars in debt. >> jason wa