From the first report of a gunman to the lockdown of area schools, see the timeline of the Navy Yard shooting tragedy. NBC’s Jim Miklaszewski reports. Editor's note: In the days following this report, new information emerged indicating that the animation in it is not an entirely accurate depiction of events.Sept. 16, 2013
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Deaths of Pennsylvania family of 3 appeared to be preplanned, police say
00:55
Two suspects arrested in killings of 6 in central California
01:37
Video appears to show Chinese spy balloon being downed
04:05
Ohio train derailment causes fire, evacuation within 1 mile