Per CNN: ATF spokesperson Meredith Davis
Explosive device found in building where original shootings took place. Bomb techs are performing a “render safe” on the device.
She did not give any other description of the device.
Explosives Robot presently going through an apartment in Redlands. Asked immediate neighbors to evacuate and others to shelter at home.
Pretty obvious that the terrorist in the meeting, staged an argument so he could leave the meeting and plant a bomb before the other shooters got there.