michelle sent a flurry of reassuring texts to friends and family, i'm fine, take it easy. her ex-boyfriend texted her back. her response from her phone? "who is this?" uh-oh. did michelle really send that text? >> i asked, is it possible she could be out there, all stressed out? they said, yes, it's possible. >> but soon, questions about michelle's friends would lead police closer than they knew to the key to this case. ♪ ♪ protect your pets from fleas and ticks with frontline plus for dogs and frontline plus for cats. its two killer ingredients work fast and keep working all month long