KANSAS CITY, Mo. — Chiefs cornerback Chris Lammons, who was wanted by Las Vegas police in connection with a battery case that left a man unconscious, has turned himself in to authorities. Las Vegas police said Lammons, 26, was booked into the Clark County Detention Center on Thursday for “battery resulting in substantial bodily harm and conspiracy.” Lammons posted bail. The victim told police on Feb. 5 that he was beaten by four men at a nightclub on South Las Vegas Boulevard. Investigators initially identified New Orleans Saints running back Alvin Kamara as a suspect; he was taken into custod…