WESTMINSTER, Colo. (AP) — Police in suburban Denver say a 17-year-old boy has been arrested in the abduction and killing of a 10-year-old girl and the attempted kidnapping of a runner. Westminster police say they arrested Austin Reed Sigg after getting a tip that led them to a home Tuesday night.Sigg's Westminster home is about five miles from the home of Jessica Ridgeway, who disappeared Oct. 5. Her body was found five days later in a field at a park. The break comes two days after police said Jessica's abduction was linked to the attempted abduction in May of a 22-year-old runner at another park, the Ketner Lake Open Space. Police say their tip led them to a home near that park, which is close to Jessica's school. Sigg will be charged in both cases. Reached by phone Wednesday, Sigg's mother told The Associated Press he turned himself in. She declined further comment.