slightly opened. she was all sick and i was like, i ll stay home with you and she wouldn t let me stay home. reporter: the two older boys, unlike their sister, stuck to the story they told police. did she ever get out of bed. yes, i think she did. reporter: if jurors believed them, it blew apart the prosecution s timeline that cory was murdered the night before. they said the same thing that they had told baird in 2006 and detective gibson in 2014. reporter: and the defense had its sights on detective gibson. they claimed in 2013, he was an over-eager, newly promoted detective- primarily assigned to work crimes against seniors. this was his first murder case. he transferred from k9 officer to elder service officer. and around the same time he went to a one week course on being a lead detective in a homicide case. and he embarked on this investigation that that led to my indictment. reporter: finally, the defense s medical expert concluded there was only one
reporter: the two older boys, unlike their sister, stuck to the story they told police. did she ever get out of bed? yes, i think she did. reporter: if jurors believed them, it blew apart the prosecution s timeline that cory was murdered the night before. they said the same thing that they had told baird in 2006 and detective gibson in 2014. reporter: and the defense had its sights on detective gibson. they claimed in 2013, he was an over-eager, newly promoted detective- primarily assigned to work crimes against seniors. this was his first murder case. he transferred from k9 officer to elder service officer. and around the same time he went to a one week course on being a lead detective in a homicide case. and he embarked on this investigation that that led to my indictment. reporter: finally, the defense s medical expert concluded there was only one plausible explanation for cory s death.
extra door that was usually left slightly opened. she was all sick and i was like, i ll stay home with you and she wouldn t let me stay home. reporter: the two older boys, unlike their sister, stuck to the story they told police. did she ever get out of bed? yes, i think she did. reporter: if jurors believed them, it blew apart the prosecution s timeline that cory was murdered the night before. they said the same thing that they had told baird in 2006 and detective gibson in 2014. reporter: and the defense had its sights on detective gibson. they claimed in 2013, he was an over-eager, newly promoted detective- primarily assigned to work crimes against seniors. this was his first murder case. he transferred from k9 officer to elder service officer. and around the same time he went to a one-week course on being a lead detective in a homicide case. and he embarked on this investigation that that led to my indictment.
and she wouldn t let me stay home. reporter: the two older boys, unlike their sister, stuck to the story they told police. did she ever get out of bed. yes, i think she did. reporter: if jurors believed them, it blew apart the prosecution s timeline that cory was murdered the night before. they said the same thing that they had told baird in 2006 and detective gibson in 2014. reporter: and the defense had its sights on detective gibson. they claimed in 2013, he was an over-eager, newly promoted detective- primarily assigned to work crimes against seniors. this was his first murder case. he transferred from k9 officer to elder service officer. and around the same time he went to a one week course on being a lead detective in a homicide case. and he embarked on this investigation that that led to my indictment.