Police have arrested a 22-year-old Brooklyn man and charged him with the murder of 16-year-old Kyanna Thomas, who was stabbed in the throat and left to die on a street corner in Brownsville early one morning in September. Sources say Rashad Salaam has confessed to killing Thomas, because he feared Thomas was setting him up "for an ambush and a beating," the Daily News reports. The two were online acquaintances, and it's unclear what set off her feud, but the grisly slaying was apparently unintentional.

Thomas was found with her throat slashed on MacDougal Street and Saratoga Avenue at 3 a.m. on September 25th. The teenager, who lived in Queens, had been staying with her aunt on the night of the murder, and her family says she sneaked out to attend a party. Sometime after 3 a.m. she used her cell phone to call 911 as she lay dying in a pool of her own blood.

One police source tells the News Salaam "wanted to give her a 'buck fifty'," a reference to a slash wound from her ear to her mouth which requires 150 stitches to close. "But he wound up slashing her throat by mistake. He meant to slash her not kill her," he told police.