Between 1991 and 2001, a series of violent sexual assaults in Wyoming and Utah went unsolved. One expert says the man responsible knew he didn't think or value human life the way most people do. He wasn't bothered by it or motivated to change, which she says made him particularly dangerous. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

After his wife is murdered, an injured husband reveals an affair and a pregnancy that reshape the investigation. Watch "A Body in the Basement" on ID and stream on @HBOMax. #ABodyInTheBasement

After his wife was found dead in their basement, Rick Dabate told investigators something he hadn't shared with friends. He said a friend named Sara was pregnant with his child, and that his wife welcomed the idea. Investigators called it an unusual circumstance. Watch "A Body in the Basement" on ID and stream on @HBOMax. #ABodyInTheBasement

A lethality assessment helps first responders and domestic violence professionals recognize warning signs that may point to a higher risk of serious or deadly violence. Swipe to see how it works. Learn more and access support resources at NoExcuseForAbuse.com. To recognize the signs in your own relationship, visit us.bright-sky.org/en/am-i-at… #NoExcuseForAbuse @_10toLIFE @nomoreorg @NDVH

People who loved Yeardley Love remember exactly where they were when they heard the University of Virginia lacrosse player had been murdered. When an officer asked who might want to hurt her, one person said everybody loved Yeardley. Pressed for a name, she mentioned an ex-boyfriend, George. The officer said it wasn't the first time his name had come up. Watch "Toxic" Tuesdays on ID and stream on @HBOMax. #ToxicOnID

He may have walked in wondering what detectives knew. One expert says that changed when they raised DNA evidence and asked about specific numbers of victims, and he began shutting the conversation down. People with psychopathy like to control an interview, she explains, and he quickly realized he couldn't. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

A 17-year-old was accused of killing Margaret Douglas, his 98-year-old neighbor in Wadsworth, Ohio. A forensic psychiatrist says the teen showed little emotion as he described it. He seemed resigned to getting in trouble, with none of the regret or empathy the psychiatrist looks for. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

ID is partnering with NO MORE and The National Domestic Violence Hotline to raise awareness of financial abuse and help viewers recognize its warning signs. Learn more and access support resources at NoExcuseForAbuse.com. #NoExcuseforAbuse @elizabethchambers @nomoreorg @ndvhofficial

Few people know what it is like to learn the person you married was a serial killer. Kara Robinson Chamberlain, who escaped Richard "Marc" Evonitz at 15, understands why his ex-wife, Bonnie Lou, kept her story to herself. Together, they are following new leads into crimes that may still be untold. Watch "The Serial Killer Connection" Wednesdays on ID and stream on @HBOMax. #SerialKillerConnection @Bonniejose2 @KR_Chamberlain

When detectives investigating the murder of 98-year-old Margaret Douglas in Wadsworth, Ohio, questioned a teenager, he used the word psychopath. One expert sees it as a sign he had read about the term, trying to understand why he was different and perhaps how to manage it. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

His early run-ins with police could be dismissed as a boy acting out. But when asked about breaking into cars, he told his mother the owners were at fault for leaving their doors open. One expert sees that blame and sense of entitlement as an early warning sign. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

After admitting she took a baby that wasn't hers, she began describing her depression. An expert says the story was built to make her the victim and help her avoid punishment, while a woman was still missing. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

Roger and Pamela Mortensen said they walked in on burglars and were tied up the night Roger's father, Kay, was killed in his Payson Canyon home. Police cited inconsistencies in their stories, and both were indicted. Months later, a tip sent investigators to Vernal. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

In Sarah's religious community, any affair or scandal was treated as the woman's fault. So when she took on church leaders over the pastor who abused her as a teenager, she was met with hate, pushback and an attack on her character. Watch "Toxic" Tuesdays on ID and stream on @HBOMax. #ToxicOnID

The power imbalance between a teenager and her pastor left her no control over the narrative, and she was convinced it was true love. After a close call, he moved their make-out sessions off campus to a secluded hilltop, where his car would hide them from view. Watch "Toxic" Tuesdays on ID and stream on @HBOMax. #ToxicOnID

Once Sarah was close to the age her pastor had been when the abuse began, she knew she could never see a teenager in a romantic or sexual way. She feared she would be the one blamed for speaking out, but she thought of other survivors who felt alone. Watch "Toxic" Tuesdays on ID and stream on @HBOMax. #ToxicOnID

She had never accepted a ride from a stranger. Inside his black pickup, he warned that a young woman like her should not take rides from strangers. His words confirmed her fear that she was in trouble. Watch "The Serial Killer Connection" Wednesdays at 9/8c on ID and stream on @HBOMax. #SerialKillerConnection @KR_Chamberlain @Bonniejose2

Through No Excuse for Abuse, ID has partnered with NO MORE and The National Domestic Violence Hotline to help viewers recognize warning signs like tracking and find support. Learn more and access support resources at NoExcuseForAbuse.com. #NoExcuseforAbuse @nomoreorg @NDVH

Almost two decades after a series of violent sexual assaults in Wyoming and Utah, DNA led detectives to a man one expert says was driven by power and control. He described it bluntly: like running downstairs to see what was under the Christmas tree. Watch "Signs Of A Psychopath" Tuesdays on ID and stream on @HBOMax. #SignsOfAPsychopath

She was a teenager when her pastor told her he wanted to be her first. He had her leave school with a migraine and wait at her grandparents' house, where no one would walk in on them. Watch "Toxic" Tuesdays on ID and stream on @HBOMax. #ToxicOnID