Now Playing: Government shutdown deadline nears

Now Playing: Final 48-hour stretch to government shutdown deadline

Now Playing: Border wall stalemate holds as government shutdown looms

Now Playing: Investigation identifies 500 Catholic priests and clergy accused of sex abuse

Now Playing: Judge declines to dismiss charges against Harvey Weinstein, moves case forward

Now Playing: Judge rules Harvey Weinstein will have to face trial on remaining sex charges

Now Playing: Backlash over Trump’s decision to withdraw troops from Syria grows

Now Playing: Senate passes short-term spending bill to fund government until Feb. 8

Now Playing: Airports bracing for holiday travel rush as millions take to the skies

Now Playing: Oversight of Mueller probe being handled ‘appropriately’ under Whitaker: Rosenstein

Now Playing: US indicts alleged Chinese hackers for ‘unrelenting effort’ to steal tech

Now Playing: ‘My family has been destroyed’: Family seeks killer of Florida librarian

Now Playing: Suspect in 1979 cold case murder makes first court appearance

Now Playing: News headlines today: Dec. 20, 2018

Now Playing: Ex-boyfriend charged with trying to extort ‘Jersey Shore’ star for $25K

Now Playing: Tesla opens investigation into car that burst into flames — twice

Now Playing: Outrage over 5-year-old boy seen on video left in school bus

Now Playing: Urgent investigation into mother’s death by bullet wound, not a car crash

Now Playing: Man wrongfully convicted for doppelganger’s crime awarded $1.1 million

Now Playing: DNA technology cracks 39-year-old cold case