on the surface, mary kay concepcion, currently housed in the women's facility wouldn't seem to have muchny common with butterfield. but she, too, is accused of murdering her child t. haunts me every night. i wake up and say, is this really happening? i keep hoping i'd wake up and it's just a nightmare. terrible nightmare. >> concepcion has pled not guilty and is awaiting trial. >> we try to better ourselves with bible studies and looking at big words in the dictionary. >> like scuttlebutt. >> yep, scuttlebutt. >> concepcion has two good friends in jail, julie and teresa. >> it's not common to actually have friends in here. it's very rare. but it's actually really nice to have that in here. it's like your moral support. >> but concepcion has kept her charges a secret from her friends. they think she has three young children, two sons and a daughter. they have no idea she has been charged with the murder of her 2-year-old son, fox. >> look at that. mama. >> he's my baby. my asian baby. look at his eyes. >> he reminds me of a precious moments doll right here. you know, the sad eyes kind of.

which it did. >>> over in the women's wing of the jail, mary kay concepcion has just had her 26th birthdayt also marks the death of her 2-year-old son, fox. concepcion and her boyfriend are both awaiting trial for his murder. >> i'm writing a poem for him. for his death anniversary. "not too long ago you came to me, a miracle of many firsts. first smile, first set of teeth and first baby steps. but one night god took you away and left me your past. i will be thinking for a lifetime of your last. the last time i held you and kissed your soft baby lips." sorry. "last time you run to me and scream, mommy! last time you tugged on my shirt to carry you up. the last time you stole shrimp from your sister's plate, the last time i dressed you up, the last time i tucked you in and said good night, i never said good-bye to yesterday's long past. i would have marked the moments if i had known they were your last. the last time i hold your hands, the last time i kissed you. the last time i hugged you and the last time i said good-bye." >> concepcion has kept her charges a secret from her two best frie