Now Playing: Murder or Self Defense? 911 Calls Play in 'Porch Shooting' Trial

Now Playing: Opening Statements Begin the Detroit 'Porch Shooting' Murder Trial

Now Playing: Day 2 of Jury Selection in Detroit Porch Murder Trial

Now Playing: 'GMA' Kicks Off 'Deals and Steals' '30 on 30' Event

Now Playing: Nick Hillary Speaks Out After Not Guilty Verdict

Now Playing: Flash Floods, Heavy Rain Across East Coast

Now Playing: California Police Shooting Protests Turn Violent, 2 Arrests Made

Now Playing: NTSB Vice Chairwoman on NJ Train Crash Investigation

Now Playing: Bystander Comforted Lone Fatality in NJ Train Crash

Now Playing: 1 Dead in Crash of NJ Transit Train That Was Traveling at High Speed

Now Playing: Family of Man Shot, Killed by Police Laments His Death

Now Playing: Dog Rescued After Falling Into 40-Foot Well

Now Playing: Surveillance Video Shows NJ Train Before It Crashed

Now Playing: Hoboken Restaurant Closed Due to Investigation, Offers Coffee and Food for First Responders

Now Playing: Officials Plan to Open PATH station for Evening Commute

Now Playing: 1 Dead, Dozens Injured in NJ Train Crash

Now Playing: Gov. Chris Christie Gives Update on NJ Transit Train Crash Investigation

Now Playing: Eyewitness Describes Chaotic Train Crash Scene

Now Playing: Video of Alleged Police Shooting of Louisiana Boy Released

Now Playing: Dispatch Calls Reveal NJ Train Crash Horror as It Unfolded