friends sent a deputy to the tan home to check on charlie'sfare. it's possible that when the boy answered the door his dad was already dead inside. but no one from the tan home called 911 that night. rather, charlie and his mom grabbed their passports and fled the country. >> jean tan and charlie tan left the country, went to canada and came back on that monday before the 911 call was placed. >> so why come back and tell a lie? the prosecution didn't know. a guess, perhaps someone had to run jim tan's business. and this last tidbit, before that four days late 911 call, charlie took the time to first send a warning e-mail to his college buddies. they would soon hear things in the news. >> the defendant sends an e nile his fraternity brothers called "show time." >> you're going to be hearing from law enforcement. >> yes, yes, you will be surprised. showtime. >> they don't buy the self-defense. this was no crime of passion. it was a planned murder. so this is an assassination. >> yes. >> he walks in and blows dad away. >> exactly. >> the prosecut