CHICAGO (WLS) -- A painful song of love and loss encapsulated the emotions tearing apart Marcela Herrera's family as they continue to grapple with her untimely loss and questions surrounding her death.

"Her dreams and her life were cut short by the recklessness of an irresponsible driver," said Naomi Herrera, Marcela Herrera's sister.

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Marcela, 22, was killed exactly one month ago Tuesday after she and her fiancé were hit by driver in a dark-colored Dodge Journey, leaving her 21-year-old fiancé injured .

"Our pain is immense, and our soul is shattered, because to this day, we have not received any response from the relevant authorities," Naomi said.

On Tuesday night, family and friends gathered in front of Chicago Police's 12

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