New Jersey 12-year-old Autumn Pasquale was likely killed in a struggle for her BMX bike, prosecutors said yesterday, after a neighborhood mom turned in her own teenage sons in the case. “Might be moving :(” wrote 15-year-old Justin Davidson on his Facebook over the weekend, reportedly tipping off his mother that something was wrong. Pasquale was found strangled in a nearby lot yesterday, while her bike was discovered in the Davidson home. Justin and his 17-year-old brother Dante have been charged with murder and will potentially be tried as adults.