Action 4 News obtained a copy of John Allen Rubio's original confession with Brownsville police.
Rubio is currently back in court fighting capital murder charges for the March 2003 deaths of his three children.
The Brownsville man spoke calmly with Det. Sam Lucio and Det. Thomas Clipper about the case.
Rubio spoke with the two detectives talk about how he and his common-law wife Angela Camacho killed their three children.
You can read unedited copies of the original police reports and supplement reports in the case as well as Rubio's written confession.
Warning: Some parts of the interview and police reports go into graphic detail.POLICE REPORTS
Original Police Report (PDF)