Now Playing: Fraternity shut down after Ohio University student’s death

Now Playing: 26-year-old face transplant recipient: ‘I see me’: Part 1

Now Playing: Face transplant recipient’s mom learns about renowned reconstructive surgeon: Part 2

Now Playing: Surgeon meets potential face transplant recipient before agreeing to operate: Part 3

Now Playing: Face transplant donor’s mother’s difficult decision: Part 4

Now Playing: How surgeons performed 26-year-old man’s face transplant procedure: Part 5

Now Playing: Face transplant recipient thanks donor’s mother: Part 6

Now Playing: Fraternity member critically injured after falling down stairs

Now Playing: Santa Rosa police officer reunites with 87-year-old he saved in fire: Part 3

Now Playing: Residents return to Santa Rosa to rebuild after Tubbs fire tragedy: Part 2

Now Playing: ‘Everything we’ve worked for.. gone’: Santa Rosa remembers fire one year later:Part 1

Now Playing: Girlfriend of man who admitted to killing family: ‘He lied about everything’

Now Playing: Killer allegedly claims responsibility for 90 US killings: Authorities

Now Playing: Face transplant recipient has emotional meeting with donor’s mother

Now Playing: Lawyer: Woman in alleged GoFundMe scheme was ‘trying to help’

Now Playing: Police baffled by Army veteran’s disappearance during 49ers game

Now Playing: Hazardous air quality threat as crews continue to fight California fires

Now Playing: November noreaster drops 6 inches of snow, ice on New York City

Now Playing: California’s ‘Tent City’

Now Playing: A mother’s decision to donate son’s face: How doctors approach, support families