joining me right now special guest sheriff mark pazin with the merced county sheriff's office. sheriff, thank you for being with us. sheriff, this case has gone from missing person now to homicide. why? >> well, we believe that randy wright has earned the scrutiny with some inconsistent statements as mentioned earlier in your show. things just aren't coming together as he would like us to believe. case in point, we go back to february 12th. he had gotten back from mexico, and i can share with you this. there was immediately a suspicion about it when he called our agency to tell us that there was something suspicious that his wife had not come home. it was almost like he was wanting us to verify a certain aspect of his story. right away, we knew that there was something amiss, and we immediately called our major crime unit. >> sheriff pazin, what i don't understand is he calls you and says something suspicious, his wife hasn't come back home. why did that pique your interest? >> well, normally you would think as a normal course of events and having done this for a number of year

joining me right now the in addition to sheriff mark pazin is karen's sister out of sacramento, california. marsha stewart. marsha, thank you for being with us. tell me about your sister. this seems highly uncharacteristic of her to just disappear, fall off the map. >> it is. it's not like her to just take off and drive through the middle of the night to go to mexico. it's my understanding there was a gas charge on her credit card in the city of el centro, which is a city that's right before the border. nothing in between. she has a hummer that gets eight miles to the gallon. there was no gasup in merced. she would have had to gas up several times to get there. she called mom the next morning or that morning, which was february 9th. and said she was in mexico. she would be home on the 11th. next thing i know i get a call from the sheriff's department on the 12th at noon saying randy came back and said karen went missing in mexico. and so we went down to the sheriff's department. they had stated fbi was involved. but i had been in contacting with kate barton of the consulate, and she stated