Now Playing: 11-year-old Pennsylvania boy saves life of suicidal girl in Texas using Snapchat
Now Playing: School resource officer sings ‘Rainbow Connection’ to student
Now Playing: Fire dancing in the snow
Now Playing: 5 dead as small plane plunges into Lake Okeechobee in Florida
Now Playing: More women are now bosses, doctors and politicians: Census
Now Playing: R. Kelly released from jail after arrest for outstanding child support payments
Now Playing: Meeting real-life Captain Marvel
Now Playing: 3 dead, including student, in Oklahoma school bus crash
Now Playing: Newark Liberty International Airport reopens after a fire caused a temporary closure
Now Playing: Deadly Little Rock police shooting under investigation
Now Playing: Maryland court denies new trial in ‘Serial’ podcast murder case
Now Playing: Former head of FBI and CIA threatened by scammers
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
Read More