Shocking moment 'killer' is nabbed by police 'after murdering woman, 35 and her daughter, 4, but sparing sister in home that had animal cages'

Images have emerged showing the moment a suspected killer is caught by police after allegedly murdering a mother and her daughter. 

Daniel Callihan, 36, was apprehended by officers with the Tangipahoa Parish Sheriff's Office in Jackson, Mississippi, on Thursday. 

He was arrested for the murder of Erin Brunett, 4, who was found behind a home in the area after her mother Callie Brunett was found dead at her Louisiana home.

The 35-year-old was found dead on the bedroom floor of her Loranger mobile home on Thursday morning, with her two daughters Erin and Jalie, 6, missing. 

On Thursday, police tragically discovered little Erin's body in a wooded area a few hours later, while her sister Jalie was found alive close by. 

Images taken by officers show the bedraggled Callihan being held up by two law enforcement officers as he was apprehended. 

Jackson Police Chief Joseph Wade said that investigators uncovered evidence that the two siblings were located a home involved in human trafficking. 

Wade told reporters: 'We see cages, small animal cages. This is very, very disturbing to me as a police chief and as a father to witness and see what I saw.'

Tangipahoa Parish Sheriff's Office Chief Jimmy Travis called the scene at Brunett's mobile home an 'obvious homicide' with 'blood everywhere'. 

Brunett had been missing for over 24 hours before detectives found her body, according to the Tangipahoa Parish Sheriff's Office.

The chief said afterwards that the children could be half way across the country but that police would be using all resources to get the children home.

Sheriff Daniel Edwards said that Callihan was not a 'complete stranger' to the family and had dated Brunett. 

According to WDSU, officers also detained a Victoria Cox, 32, as an accused accomplice in the abduction and murders. 

Wade said during a press conference that they received a tip that Callihan may not have acted alone, before they tracked Cox down. 

He said: 'We’re still trying to determine her exact role.She will be held accountable for her actions and her role in this horrific event that happened that spanned from Tangipahoa to South Jackson. 

'She could possibly be facing capital murder charges along with him, or accessory before and after the fact.'

Callihan is accused of committing brutal and heinous acts of violence including the murders of Brunett and her youngest daughter. 

Sheriff Daniel Edwards said: 'Our hearts are with all those affected by this tragic event. 

'These are unspeakable crimes. We ask everyone to keep Callie's family in your prayers.'

On Friday, WDSU reported that the FBI had returned to the area where the girls were found as they continue their investigation.