A police sergeant made a stomach-churning "dying declaration" during a tense stand-off with officers before taking his own life this week.
Sergeant Robert Johnson, from Harris County Precinct One in Houston, Texas, confessed to sexually abusing children and implicated two colleagues during the six-hour confrontation, ABC13 reported.
Johnson, who was married, admitted to having an affair with dispatcher Christina McKay and Deputy Chonda Williams, and alleged the pair participated in sexually assaulting minors with him, according to the publication.
Allegations of his inappropriate conduct first emerged last week when officers questioned his colleague, Ms McKay, about her poor performance at work.
Ms McKay proceeded to report that Mr Johnson had allegedly been sexually abusing children, sparking the immediate launch of an official investigation.
Ms McKay went further to allege that Mr Johnson was having an affair with their other colleague, Ms Williams, and that the pair were sexually involved with a minor, according to court documents.
She alleged that before assaulting one child, he gave her some pills "so she wouldn't be aware".
In discussions with investigators, Ms McKay admitted to also having an affair with Mr Johnson, and said she allegedly gave him tablets to "sedate the minor children victims" and booked a hotel more than 20 times.
She told investigators that on one occasion, Mr Johnson carried a child out of a room "over his shoulder".
Officers went looking for Mr Johnson and by Wednesday (local time) managed to track him down.
Following a chase and a heated stand-off, Mr Johnson made what they described a "dying declaration" before taking his own life.
"Johnson confessed to everything he had done and he implicated two other employees at this office, Christina McKay and Chonda Williams," Constable Alan Rosen said in a press conference Friday.
"It's pretty apparent that everybody around this guy had no idea that he was a paedophile," Mr Rosen said.
"Not his wife. Not his friends. Not his co-workers. Nobody."
The two women have been fired, charged with sexual assault of a child and arrested. Bonds for both are US$200,000 (A$269,000). They remained in jail Friday night (local time).
Mr Rosen told reporters he had been in contact with the child victims and their families.
He also revealed Mr Johnson had been hired at his precinct after being sacked from the Harris County Sheriff's Office because of an inappropriate relationship with an adult.
Mr Rosen chose to give him a "second chance" after he passed a psychiatric evaluation and a background check.
The matter remains under investigation.
Readers seeking support and information about suicide prevention can contact Beyond Blue on 1300 22 4636, Lifeline on 13 11 14 or Suicide Call Back Service on 1300 659 467.
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