Search warrants shows how 28-year-old Jennifer Rothwell looked up "what to do if your husband is upset you are pregnant" on her phone before she went missing last month.Jennifer's body was found about a week later, and her husband Beau, 28, has been charged with second-degree murder and evidence tampering.A source told the St. Louis Post-Dispatch that Beau was having an affair at the time his wife died.Visit Insider's homepage for more stories.A suburban St. Louis woman whose husband is charged in her death had looked up "what to do if your husband is upset you are pregnant" on her cellphone before she went missing last month, according to search warrants.The warrants, obtained by the St. Louis Post-Dispatch, outline the reasons detectives gave for searching the home of Jennifer and Beau Rothwell near the suburb of Creve Coeur. The couple's cellphones, email accounts, Facebook accounts and Beau Rothwell's SUV were also searched.Beau Rothwell, 28, is jailed without bond on charges of second-degree murder and evidence tampering in his wife's death. His lawyer previously declined to comment on the charges.Her body was found about a week after she went missing about 45 miles northwest of her home. She was found in a wooded area, her naked body partially covered in branches and brush.Detectives disclosed in warrants that Jennifer Rothwell, who was also 28, had been six weeks pregnant when she died. A source close to the investigation told the Post-Dispatch that Beau was having an affair at the time of his wife's death.In the newly released search warrants, investigators say Beau Rothwell called 911 at 9:44 p.m. on November 12 to report his wife of four years missing, saying he last saw her that morning as she was leaving for her job as a chemical engineer.He told police that her co-workers told him she didn't show up for work that day and that they were concerned. Police found her car parked near her home, with her cellphone inside.Beau Rothwell wouldn't let police search the home, car or cellphone, or take a DNA sample from him, according to investigators. He also requested an attorney.Detectives then searched a trash can placed at the curb of the home on November 13. In it they found various cleaning supplies, including rubber gloves and paper towels, the warrants state. A receipt showed cleaning items had been purchased November 11 from a grocery store."This purchase was oddly at a time during a major snow event involving dangerous driving conditions, and was also contradictory to Beau Rothwell's statement that he was home with his wife all night," an investigator wrote in the documents.Police also found signs that violent acts had been committed inside the home. Detectives described an "overwhelming" smell of bleach and other cleaners inside the home as well as several "large areas of red stain" at the base of the basement steps. DNA tests confirmed that the blood found in the home was Jennifer Rothwell's.There was also damage to drywall in the basement, which had samples of human hair, the warrants state.The blood-stained areas were wet with detergent and had a circulating fan blowing air over the area, and the basement windows were open despite temperatures that were in the 30s.Beau and Jennifer Rothwell received chemical engineering degrees from the University of Missouri-Columbia in 2013. They married in 2015 in St. Louis County.The case draws similarity to the murder of pregnant Shanann Watts and her two daughters last year. Husband Chris Watts initially reported his wife missing, but then copped to killing all three and hiding their bodies at a work site. Evidence uncovered at trial showed how Chris was having an affair with a co-worker at the time and was not excited about his wife's pregnancy.Read more:A man killed a Chicago college student after she ignored his catcalls, prosecutors sayThe Supreme Court rejected Adnan Syed's bid for a new trial in the 'Serial' podcast murder caseA Russian Napoleon expert was caught with arms in a bag and admitted to murdering his lover and former studentThe Texas parole board is recommending a delay for Rodney Reed's execution after Kim Kardashian West and Beyonc pushed for a reprieveJoin the conversation about this storyNOW WATCH: A podiatrist explains heel spurs, the medical condition Trump said earned him a medical deferment from Vietnam
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