>> one of a mother who dared dream that her sweet gemini twins would surpass her. who instead became their victim. >> that's all for this edition of dateline. i'm craig melvin. thank you for watching. -- ranking is as we come on the air tonight. mass shooting in jacksonville florida. as shots rang out in a store we >> have learned the attack was -- motivated. it is what the county said just moments ago. >> he killed three people before turning the gun on himself, taking his own life. out of the three individuals killed, and the shooter himself, there were no additional people who suffered gunshot wounds, we are not identifying that denise victims at this time but i can