Des Moines police are investigating a possible abduction. Police Sergeant Tony Steverson says a witness saw an altercation in a southside shopping center parking lot about eight o’clock this morning. He says a man was seen beating a woman, pushed her inside the cab of his pickup and they drove off. There’s no solid description of the man other than a white male. The white woman’s described as late teens, early 20s, long brown hair, wearing blue jeans and a blue sweater. They sped away in a blue Mazda pickup with an Iowa license plate 933-HNQ.