Janesville police have identified the body found near the river in the 500 block of North Main Street early Monday morning. Police chief David Moore says autopsy results show 21-year-old Briney Cross of Edgerton died of blunt impact -head trauma. Moore says Cross and 28-year-old Clayton Courtney of Janesville were together in the vicinity in the late afternoon or early evening hours Sunday. Moore says Courtney is the lone suspect in the homicide. Courtney was arrested at his home on North Pontiac Drive Sunday night after a house mate was near fatally stabbed.