 It started when one of the private owners of the land the mine sits on plugged a horizontal mine shaft, which moved the water to the waste. Connie Weber, Arizona News Radio. Chandler police say the mother and daughter found dead in a condo this week died in a murder-suicide. Detective Eva Zermeno says police got a call on Tuesday evening. They received a 911 call from a family friend who had stated that they'd walked into their unlocked condominium and found the two individuals deceased.