Andreen McDonald: A Millionaire Vanishes

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[MUSIC PLAYING] Andrew McDonald had a very, very strict regimen. She followed it daily. Nice, drop it. That is her. She would be at the gym at 5.30 in the morning in the office by 8. On March 1, they had no indication she would be late. She didn't show up for work. This was very significant to her employees. They called the gym and found out she never showed up to the gym, which is like a religion to her. I don't call it Andrew. Repeatedly, it's going to voicemail. You know, the anxiety starts studying, and like, I start panicking. For Andrew to be missing is not possible. The biggest issue for me were the fact that her phone was missing. Her purse was still there. Her keys were on the counter, and her vehicles were still there. If her vehicle's there, her purse is there. Her keys are there. If she's missing, is there a concern of an abduction? The deputies obviously didn't know what to think at this point. They were just beginning the investigation. What we did learn is, Andrew McDonald, a beautiful Jamaican woman, was brought to the United States by Andre, her husband, is a major in the Air Force and had top secret security clearance. They began an assisted living business where they, in short order, became millionaires. The picture of the American dream. She's not boastful or anything like that. She's just that humble person. Andreen had a great reputation in not only the assisted living community here in San Antonio. And we're on the side of the street this morning, and we're giving out food for those less fortunate. She was very, very generous with her wealth and her time. Yeah, bless you. Kind of a rising star of San Antonio. Absolutely, very much so a rising star. They were always laughing together. They were always joking around. The home didn't seem to be in terrible disarray. No furniture was knocked over or anything was broken. I found there was blood on the wall in an area that was kind of odd. There was blood and hair on a light switch.
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How a yellow hammer nailed a suspect in the case of a missing businesswoman. "48 Hours" correspondent Peter Van Sant reports.