forget you. >> i just want to know whenever i do die, i just want people i love to know that whenever i die, that i was happy. ♪ ♪ ♪ >> that's all for this edition of dateline. i'm craig melvin. thank you for watching. thank you for watching >> i'm craig melvin, and >> i'm craig i'm natalie melvin, and i'm morales. and this is natalie morales. and this is dateline. >> dateline. i was robbed of my sister. i had to grow up without one. in an instant, she was gone. and it changed everything. >> she dreamed of a career solving crimes but crime came for her first. >> i prayed, my daughter,