Now Playing: New York Police Department halts use of bodycams after 1 explodes

Now Playing: 70-year-old woman murdered in New York City apartment

Now Playing: Ex-NFL player Rae Carruth released after nearly 20 years in prison

Now Playing: A California community helps grant wish of boy with a congenital heart defect

Now Playing: Teenage suspect in Georgia cop killing is dead: Officials

Now Playing: Ecuadorean man detained while delivering pizza arrested after argument with wife

Now Playing: Sheriff looking for cars of interest in case of missing Wisconsin girl Jayme Closs

Now Playing: Person shot by security guard while trying to break into news station

Now Playing: News headlines today: Oct. 22, 2018

Now Playing: Sheriff's deputy repeatedly punches DUI suspect in dash-cam footage

Now Playing: Woman seen on video leaving toddler on stranger's doorstep speaks out

Now Playing: Record Mega Millions jackpot on the rise

Now Playing: Native Americans in North Dakota fight for their right to vote

Now Playing: Mega Millions jackpot soars to a record $1 billion

Now Playing: Torrential rain continues in Central Texas after days of flooding

Now Playing: Nebraska tells tourists 'it's not for everyone'

Now Playing: Police launch investigation after video shows teacher taping student to chair

Now Playing: California murder suspect caught by police after he live-streamed car chase

Now Playing: Lottery fever hits the US as Mega Millions jackpot climbs to $970 million

Now Playing: Why do Mega Million jackpot prizes get so big?