Atlanta, Georgia
The two Atlanta men suffered severe burns.
More than 50 shell casings were reportedly found at the scene.
The league says it will investigate the "clearly inappropriate" incident.
The Southern Poverty Law Center is investigating possible constitutional violations.
WHAT'S HAPPENING
A female and "several other people" were allowed to leave the home, but the toddler remained inside with the suspect.
Ozell Sutton marched for equal rights alongside Dr. King in Selma, Alabama.
Police quickly removed the images and are investigating who posted them.
Brian Keith Terrell, 47, was put to death for the June 1992 killing of John Watson.
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