Taxi group calls for change after 5th driver suicide in 5 months Video

Now Playing: Taxi group calls for change after 5th driver suicide in 5 months

Now Playing: Starbucks stores closed nationwide for racial-bias training

Now Playing: 7-foot alligator scales backyard fence

Now Playing: Sesame Workshop sues over Melissa McCarthy puppet movie

Now Playing: American imprisoned in Venezuela reunites with family

Now Playing: Hero teacher who disarmed school shooter speaks out

Now Playing: Blaze tears through senior community in Florida

Now Playing: Trump’s Memorial Day tweet sparks backlash

Now Playing: Video shows lava overtaking Hawaii home

Now Playing: Urgent search for man swept away in Maryland flood

Now Playing: Millions in the path of subtropical storm Alberto

Now Playing: National guardsman missing after devastating flash floods hit town

Now Playing: Alberto makes landfall, bringing torrential rains and powerful winds

Now Playing: Chief responds after video released of police taking down beachgoer

Now Playing: Teacher who tackled alleged shooter reunites with students at baseball game

Now Playing: Mounds of molten lava sparking new evacuations on Hawaii’s Big Island

Now Playing: Water-main break causes enormous fountain of water in LA

Now Playing: Americans share their patriotic acts this Memorial Day

Now Playing: Riders stranded on roller coaster in power outage

Now Playing: Water-main break causes enormous fountain of water in LA