It started when a Kansas Highway Patrol officer pulled over two Kansas City, Mo., sisters for speeding near the Colorado border and found a small amount of marijuana.

Three days later, one woman lay dying in a northwest Kansas jail cell as the other frantically tried to revive her.

Now, Joy Biggs is mourning Wednesday’s death of her sister, 58-year-old Brenda Sewell. Family members demanded answers Friday as to why after Monday’s arrest the women were held in a Goodland jail without being able to make a phone call or get adequate medical care.

Biggs says her sister spent Tuesday vomiting but was not taken to the hospital until that evening when she started throwing up blood. She was sent back to jail an hour later. The next day she was dead.

Goodland police say they are investigating.