the more they talked, the more detectives wondered if perhaps, shirlee sherman had actually been the intended target. coming up, and one point in time, she was thinking about getting a restraining order. >> a secret in the sherman family. >> we had an explosive relationship. she hated what he had been doing to me. and then your person in just. >> he immediately had a buzz for him. could it have been him? >> when dateline continues. ♪♪ ready to feel what it's like? when you can du more with less asthma. it's possible with dupixent. dupixent is not for sudden breathing problems. it's an add-on treatment for specific types of moderate-to-severe asthma. and can help improve lung function for better breathing in as little as two weeks. dupixent helps prevent asthma attacks... and can even reduce or eliminate oral steroids. are you in? dupixent can cause allergic reactions that can be severe. get help right away if you have rash, chest pain, worsening shortness of breath, tingling or numbness in your limbs. tell your doctor about new or worsening joint aches and pain, or a parasitic infect

they can speak to shirlee or thomas or roger or mary. ♪ >>> this sunday, >>> this sunday, defending democracyone year after russia invaded ukraine, president biden promises to stand strong against the threat from vladimir putin. >> ukraine will never be a victory for russia. >> what does victory look like and are we give them enough to win the war or just surviving? >> if you want victory, we have to do more. >>> plus, rising tensions. >> you are approaching chinese airspace. >> as the u.s. continues to warn china about sending weapons to ukraine, tensions are rising in the south china sea. is the pentagon preparing to move more troops to taiwan? my guests this morning, if national security adviser to president biden jake sullivan and dan sullivan of alaska. >>> and off the rails. >> i sincerely hope that when all of the politicians get here including biden to get back from touring ukraine that he's got some money left over. >> donald trump travels to the site of the toxic train derailment in ohio to bash the biden administration for focusing more overseas, creating the first real split scree