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Authorities say 24-year-old Heather Jensen called 911 to report her 2-year-old boy William was unconscious, not breathing and had no pulse.

Jensen told dispatchers around 7 p.m. Tuesday that her 4-year-old boy Tyler was barely breathing.

William was pronounced dead at the scene, while Tyler was flown to St. Mary's Hospital before being transferred to Children's Hospital in Denver, where he is still on life support.

Doctors say Tyler is suffering from severe kidney and liver damage. The Mesa County sheriff's department isn't saying anything about the case because it's sealed.

But, the coroner says the autopsy of the 2-year-old is complete and has been shared with investigators.

To get a better understanding of possible legal ramifications in this case, 9NEWS legal analyst Scott Robinson stopped by the studios Saturday. Watch the video above for more information.