Now Playing: ‘Deadly Dance In Texas’ – a 2020 event special airs tonight at 9/8c on ABC

Now Playing: Love triangle ends in wild car-chase shooting

Now Playing: Conviction overturned in case of doctor accused of having love rival killed: Part 11

Now Playing: Man found guilty at second trial for murder of ex-girlfriend’s new boyfriend: Part 10

Now Playing: Why man in prison for doctor’s murder says he changed his testimony at trial: Part 9

Now Playing: Jurors in doctor murder-for-hire trial on why they voted the way they did: Part 8

Now Playing: Star witness changes story, says he decided on his own to kill doctor: Part 7

Now Playing: Doctor accused of hiring hit man to kill ex’s new boyfriend goes on trial: Part 6

Now Playing: Killer describes what happened during doctor’s final moments: Part 5

Now Playing: Man admits to stabbing, shooting doctor to death in alleged murder-for-hire: Part 4

Now Playing: Police question ex-boyfriend of slain Texas doctor’s girlfriend: Part 3

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