Robert Cotton has been charged with two counts of murder, with the victims reportedly identified as his mother, Carol Brown, and uncle, Kenneth Preston.
Two of Devinn Elysse Fisher's children died in the fire; her grandmother died in the hospital from her wounds days after a fatal house fire in January.
Steven McHugh said his two granddaughters, ages 13 and 14, were at the King Soopers store with their father to get a COVID-19 vaccine when gunfire erupted.
Following the 2017 murder of Savannah Gold, Lee Rodarte Jr. sent messages to her family pretending to be her and announcing that she was leaving town for a while.