>> fingerprints revealed the woman was 29-year-old summer lee baldwin. a single mother of four children. of who had a previous arrest for prostitution. >> she was a young lady that was struggling, like many of those young ladies do. they're just struggling to make it from day to day, caught up in a world that sometimes is very impossible to get out of. >> finding summer's killer wouldn't be easy. her profession meant dealing with lots of unsavory people, and any clues left in the landfill would be difficult, if not impossible, to find. >> it would be a nightmare to go and try to obtain evidence in that area because there's just so much stuff. >> investigators found no fingerprints on the suitcase. but it was a protege brand with the label and barcode still attached so investigators started there. the manufacturer told police this make and model was sold only in walmart stores. >> i go to walmart. i found the suitcase, same suitcase, same upc number in it, an employee there told me that they were going to be able to track any purchases made on that upc nu

baldwin. thank you for watching cnn. have to begin with this gruesome story, gruesome murder scene, police chase. this three-hour standoff, absolutely has rocked this suburban houston neighborhood of spring, texas. ron lee charged in the deaths of two adults and four children, a family who police say were killed execution style. police say he apparently pose oh ed as a delivery driver, entered this home of one of his estranged wife's relatives, gathered up the children, waited for the two adults to arrive and shot all seven

baldwin. thank you for watching cnn. have to begin with this gruesome story, gruesome murder scene, police chase. this three-hour standoff, absolutely has rocked this suburban houston neighborhood of spring, texas. ron lee hasankle is charged in the deaths of two adults and four children, a family who police say were killed execution style. police say he apparently pose oh ed as a delivery driver, entered this home of one of his estranged wife's relatives, gathered up the children, waited for the two adults to arrive and shot all seven family members. how about this, though. a 15-year-old girl was able to survive a gunshot wound to her head. she somehow had the wherewithal to call 911, tipped off police to the suspect's next possibly deadly move. >> she was the only clue we had to the amount of information that we could gather on this suspect here. >> she was able to provide us the name of the person who shot them, where he was going next and we quickly responded to that location and caught him coming up to that residents where other relatives of that family lived and we assume he meant to shoot them as well. >> during much of this multi-hour standoff, he held a gun to his head while deputies surrounded