A man who shot and killed a Winterhaven man last year pled guilty as part of a plea agreement on Wednesday. 21 year old Michael Rose is guilty of Second Degree murder and will be sentenced next month. The sentence will be anywhere from 10 years in prison to 22 years. Rose shot and killed 20 year old Angel Montaldo in April, 2012. Montaldo’s body was found in a residence in Yuma with a shotgun wound.