, ▁Science , ▁and ▁the ▁Arts ▁al umn i ▁Category : Univers ity ▁of ▁Al aska ▁al umn i ▁Category : Univers ity ▁System ▁of ▁Maryland ▁al umn i ▁Category : F ell ows ▁of ▁the ▁American ▁Association ▁for ▁the ▁Ad van cement ▁of ▁Science ▁Category : San ▁Diego ▁State ▁University ▁fac ulty ▁Category : American ▁women ▁bi olog ists ▁Category : Ro ad ▁incident ▁death s ▁in ▁California ▁Category : 2 0 th - century ▁American ▁bi olog ists ▁Category : 2 0 th - century ▁American ▁women ▁scient ists ▁Category : 2 0 th - century ▁American ▁scient ists ▁Category : 2 1 st - century ▁bi olog ists ▁Category : 2 1 st - century ▁American ▁women ▁scient ists ▁Category : 2 1 st - century ▁American ▁scient ists <0x0A> </s> ▁Krist in ▁Mar gre the ▁Ros sum ▁( born ▁October ▁ 2 5 , ▁ 1 9 7 6 ) ▁is ▁an ▁American ▁to xic ologist ▁conv icted ▁of ▁the ▁November ▁ 6 , ▁ 2 0 0 0 ▁murder ▁of ▁her ▁husband ▁Greg ▁de ▁Vill ers , ▁who ▁died ▁from ▁a ▁le th al ▁do se ▁of ▁f ent any l . ▁Ros sum ▁is ▁serving ▁a ▁life ▁sentence ▁in ▁the ▁Central ▁California ▁Women ' s ▁Fac ility ▁in ▁Ch ow ch illa . ▁ ▁Background ▁Krist in ▁Ros sum ▁grew ▁up ▁in ▁Cla rem ont , ▁California , ▁the ▁oldest ▁child ▁of ▁Ralph ▁and ▁Const ance ▁Ros sum . ▁Her ▁father ▁is ▁a ▁professor ▁at ▁Cla rem