michael farrar's life in 1995 was one crisis after another. when he was released from the hospital for the illness many believed he caught in peru, michael took another step towards divorce by moving into his own apartment across town. his wife, debora, was angry, depressed, drinking heavily, and would stay in her bedroom for days at a time. michael was concerned for her welfare, as well as the safety of their three children. while visiting the house to pick up some of his things, michael noticed something suspicious in his wife's purse, a packet of castor beans. on the label was a warning that the beans were poisonous. with so many packets of castor beans in her purse, michael suspected that his wife was planning to commit suicide. >> which, really, to me, didn't make sense because dr. green is a bright woman. she was an extremely bright woman. and she's an oncologist. if you're a doctor, doctors kill themselves, all right. professional people do commit suicide. but fortunately, we have the best of drugs available to us. i mean, if you're goin

. >>> michael farrar and debora green first met in medical school in 1977.near-genius i.q.s. there was an instant attraction,

te pawn, the ultimate weapon that debora green used in this fight with michael farrar. she in some ways probably loved those kids. in other ways viewed them as an expendable resource to be used in this war. >>> tourists are fleeing tunisia after a single gunman killed 38 people sending shock waves through a country that many had seen as stabilizing. and greece on the brink. talks between greece and its creditors have collapsed leaving the future in the balance. >>> in hot pursuit, hope has not ended as hundreds of u.s. law enforcement agents are looking for one remaining prison escapee who is still on the loose. i'm george howell. we have much more on that story ahead. >> i'm becky anderson. welcome to our viewers in the u.s. and around the world. this is cnn "newsroom".." >> i'm live in tunisia, in front of the seaside resort where a single gunman went on a shooting rampage killing at least 38 people. that attack has left this country reeling. last night, we saw demonstrates outside the hotel to denounce the terror attack and demand better security. in just a minute we