On Wednesday, Hawkins and a male friend, 16, rushed her two daughters to the Peterson Regional Medical Center, where she told attending physicians that the girls had suddenly collapsed while on an outing at Flat Rock Park.
Officials say they later determined that Hawkins had left the children in her auto for 15 hours while she visited friends at a nearby residence - leaving them overnight from Tuesday until approximately noon on Wednesday.
They took the kids in the house, tried to bath them.
When Hawkins went back to her vehicle her toddlers were unconscious. She is now charged with two counts of abandoning or endangering a child but the sheriff says they expect the charges to be updated since the girls died.
Her daughters cried during the night but she ignored them, a sheriff said, and returned only at noon the next day.
The children died in hospital the following day. According to Fox San Antonio, someone talked her into taking them to a hospital.
Another pair of young children - a 2-year-old girl and a 16-month-old boy - died May 26 in Parker County, west of Fort Worth, in what appeared to be a hot auto incident. She allegedly told authorities that she didn't want to take them to the hospital "because she didn't want to get into trouble". She was taken to the Bexar County Jail following her arrest and will remain there until her transfer back to Kerr County. Although she has been charged with two counts of abandoning or endangering a child, it is likely, pending the autopsies, that Hawkins will face more serious charges. The fact that she is accused of intentionally leaving her daughters in a hot vehicle won't go over well with a judge or jury if this case makes it all the way to trial.