Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: A Virginia widow is calling for justice after her two-year-old golden retriever died from heatstroke on Friday following what was supposed to be a routine grooming appointment at Petco. After Allison Marks dropped her dog Colby Jack off at a Chesterfield County Petco for the grooming session, she called the store because no-one contacted her to say the appointment was over. An employee told her to meet the Petco's assistant manager at an animal hospital and a veterinarian informed her that Colby had probably died of heat stroke when she arrived. The manager said Colby had been left in a heated drying cage by accident after the groomer departed to attend a graduation and forgot about the dog, according to Marks.Allison Marks dropped Colby Jack at Chesterfield County, Virginia, PetcoCalled store after no one alerted her about end of grooming appointmentMet store manager at animal hospital and was informed Colby was deadColby left in a heated drying cage by accident after the groomer departedMarks wants to press charges and said she will 'get justice for Colby' 
 Question:She posted on Facebook that her 'sweet baby' had been taken away 'too soon thanks to _'.

Petco