COTTONWOOD, CA – The body of Karen Duenas, a mother of five and college instructor, was discovered by her husband in the bedroom of their upscale home. Police say she was stabbed to death multiple times.

Karen Duenas’ husband, Mark Duenas, called 911 in the early morning hours of May 5th to report he found his wife with a large gash in her chest. Mark Duenas told the 911 dispatcher that there was “blood everywhere.” The murdered mother of five was pronounced dead at the scene. Her husband told police he didn’t know what happened to her.

Police will not reveal what type of murder weapon was used in the horrific stabbing death or if there was any sign of forced entry. Neighbors reportedly say they didn’t see anything suspicious in the area around the time of the murder.

Karen’s grieving family, friends and students honored her at a memorial at Shasta College on May 11th. Karen’s brother told mourners that her husband couldn’t attend.

Extensive searches have been conducted in the area for additional evidence. Divers searched an irrigation canal just three blocks from the home. Police were seen removing brush behind the family home, but reportedly didn’t find any additional clues.

HLN reached out to Mark Duenas, but he declined to comment. Police say he is not a suspect in his wife’s murder.

Karen Duenas leaves behind five sons and five grandsons. She was an instructor in the agriculture, industry and technology division at Shasta College. She has just finished her first year of nursing school.

In a statement released by Shasta College, faculty said Karen Duenas was an “amazing instructor and beautiful human being” who was “loved by everyone.”

Anyone with information regarding the murder of Karen Duenas is encouraged to contact the Shasta County Sheriff’s Office at 530-245-6157. There is a $10,000 reward.

For more on the case, watch Nancy Grace Friday at 8 pm and 10 pm ET on HLN, and for all the latest news, go to www.HLNtv.com.

An arrest warrant has been issued for a 30-year-old groom who is wanted for the murder of his new bride. Police say 26-year-old Estrella Carrerra was found stabbed to death in her bathtub. The murdered bride was wearing her silver sequined wedding dress, drenched in her own blood. The horrific scene was described by police as a “very brutal killing.”

In a stunning interview, Nancy Grace spoke with a longtime friend of the murdered bride – Jesus, who asked to only be identified by his first name for his own protection. He revealed shocking details regarding the relationship between Estrella Carrerra and her new husband, Arnoldo Jimenez.

Jesus told Nancy Grace that the murdered bride was a “good mother” who “kept to herself.” He said he had no idea how the Carrerra ended up with a “person like him.”

Carrerra’s close friend described the murder suspect as “very controlling,” with a “short temper.”

Police say the brutal killing likely took place just hours after the newlywed couple went back to her apartment after celebrating with friends, so it’s possible Jimenez fled the area or even the state. Investigators believe the suspect may be driving a 2006 Black Maserati.

Arnoldo Jimenez is 6-foot and weighs approximately 220 lbs. He has black hair and brown eyes. If you have any information regarding his whereabouts, please call police at 708-924-7300.

For more on the case, go to www.hlntv.com

A 30-year-old Chicago man is wanted for murder after police say his new bride was found dead in her bathtub days after their wedding, still wearing the dress she had worn to the reception celebration.

Arnoldo Jimenez / Cook County Sheriff's Office

According to police, Arnoldo Jimenez and 26-year-old Estrella Carrera married at city hall in Chicago on Friday, May 11 and then went out to celebrate with friends and family that night. Both were last seen getting out of a rented limo around 4 am on Saturday to return home. Authorities are now asking for the public’s help locating Jimenez, who they say was last known to be driving a black 2006 Maserati sedan.

Carrera’s body was discovered by officers conducting a welfare check at her apartment around 4:30 pm Sunday, the Burbank Police Department said in a press release. Relatives had contacted police after she failed to pick up her two young children from a family member’s home on Saturday.

Police said Carrera, whose body had suffered multiple stab wounds, was still wearing a silver sequined cocktail dress she had been seen wearing Friday night. The Cook County Medical Examiner’s Office ruled her death a homicide on Monday. A first-degree murder warrant has been issued for Jimenez’s arrest.

On Tuesday, Burbank police released an image of Carrera wearing the silver dress and a photo of Jimenez’s Maserati. Anyone with information regarding his whereabouts is asked to call police at 708-924-7300.

For more on the case, watch Nancy Grace Wednesday at 8 pm and 10 pm ET on HLN, and for all the latest news, go to www.HLNtv.com.

Houston, Texas - Police make a gruesome discovery after finding a 6-month-old infant’s body in a refrigerator at his father’s home.

On May 2nd, the infant’s father, Joseph Mouton, called 911 and stated he was having suicidal thoughts, according to police.

When police responded to the 911 call, they discovered Mouton unresponsive on the floor of his home.

Investigators immediately began searching the home and discovered the body of his 6-month-old son wrapped in a blanket and stuffed in the refrigerator.

Joseph Mouton / Houston Police Dept.

According to court documents, Mouton caused serious bodily injury to his child by dropping the baby on the floor while he was intoxicated and failing to get the child medical attention. The autopsy on the 6-month-old boy has not been completed and the cause of death remains unknown.

Joseph Mouton has been charged with injury to a child and is currently behind bars at the Harrison County Jail on a $100,000 bond. He faces a maximum of 99 years in prison if convicted.

HLN reached out to the attorney for Joseph Mouton for a comment, but calls were not immediately returned.

For more on the case, go to www.hlntv.com

A 17-year-old boy has been arrested for allegedly drugging his grandparents to death.

On Sunday, May 13th, at 2:23 p.m., police responded to a 911 call. When officers arrived on the scene, they discovered the bodies of Janet Mae Sweet, 62, and Richard Lee Sweet, 55, inside their home. The bodies were allegedly discovered by family members who travelled to the home to celebrate Mother’s Day.

Isaiah Sweet / Buchanan Police

Autopsies were conducted by the Sate Medical Examiner’s Office; however, the cause of death is not being released at this time.

On Friday, May 11th, Isaiah Sweet, 17, allegedly discussed the murders with a friend and said he “drugged his grandparents and at that time he thought they were dead because he couldn’t locate a pulse,” according to the criminal complaint.

The following day, Sweet allegedly called another friend and admitted that he “killed his grandparents and that he was on the run,” the criminal complaint alleges.

The day after the bodies were discovered, police issued an arrest warrant. Hours later, Sweet was spotted by a police officer who was conducting surveillance in the area. Sweet fled, but was quickly identified and taken into custody.

The 17-year-old boy will be tried as an adult with two counts of first degree murder. The criminal complaint alleges that Sweet “willfully, deliberately, and with premeditation kill Janet Mae Sweet and Richard Lee Sweet.” The 17-year-old remains behind bars at the Buchanan County Jail on a $1 million cash only bond.

HLN reached out to the attorney for Isaiah Sweet for a comment, but calls were not immediately returned.

For more on the case, go to www.HLNtv.com

In a 911 call released Monday, Sergio Celis calmly informed a dispatcher that his 6-year-old daughter Isabel had disappeared from her bedroom in their Tucson home.

“I need to report a missing child. I believe she was abducted from my house,” he said. Asked why he believes she was abducted, however, he responded, “I have no idea.”

On the morning of April 21, Celis called 911 to report that Isabel was gone when he went to wake her up and her bedroom window was open with the screen laying the backyard. “My sons are running around the house looking for her,” he said.

According to Celis, the family got home from his son’s baseball game around 10:30 the previous night and the kids went to sleep soon after that. He told the dispatcher he had been watching TV in the living room at midnight and “never heard anything weird.”

“I was like just on the other side of the wall from her,” he said.

Isabel’s mother Becky had already left for work when Sergio Celis called 911. “I just called her. I told her to get her butt home,” he said.

In a separate 911 call, Becky Celis sounded more emotional and at times panicked as she tried to explain what happened.

“I went to work this morning at 7 and I just, I didn’t even come in and check on her. I should have checked on her,” she said.

Becky Celis told a dispatcher she had put braided ponytails in Isabel’s hair before she went to bed. She said Isabel was wearing an Old Navy American flag t-shirt and navy blue shorts when she last saw her.

Isabel’s 14-year-old brother also spoke to the dispatcher.

“Someone broke in and grabbed her,” he said, adding that it looked like the screen was taken off her bedroom window.

Also on Monday, police confirmed that there has been a voluntary agreement between Sergio Celis and Child Protective Services that he will stay away from his two sons. They would not say what led to that decision.

Tucson Police Chief Roberto Villasenor cautioned reporters at an afternoon press conference not to read too much into the development and said it is not indicative of a specific path investigators are pursuing.

In local and national media interviews, Isabel’s parents have both denied having any involvement in her disappearance.

 For expert analysis of the Celis 911 calls, watch Nancy Grace Tuesday at 8 pm and 10 pm ET on HLN, and go to www.HLNtv.com for all the latest news on the case.