Venice boardwalk rampage: 38-year-old Nathan Campbell arrested Updated 4:06 p.m. LOS ANGELESLos Angeles police have arrested a man on suspicion of intentionally driving into crowds at the Venice Beach boardwalk, killing a woman and injuring 11 others. Police say 38-year-old Nathan Campbell has been booked for investigation of murder and remains jailed Sunday on $1 million bail. He turned himself about two hours after the attack that occurred at around 6 p.m. Investigators don't yet have a motive. Scenes from the Venice boardwalk car rampage Witnesses reported a horrendous scene of people scattered and bloody in the popular tourist area. (Video of scenes from the incident and its aftermath can be seen at left. WARNING: Some content may be upsetting to viewers.) A coroner's investigator tells City News Service that the dead woman is 32-year-old Alice Gruppioni of Italy. Police say another victim was critically hurt, two were in serious condition and others were treated for less serious injuries. The driver fled the scene and about an hour later, just as police were circulating word that they were seeking a black Dodge with a driver in his 20s. The site isn't far from the Santa Monica Farmer's Market where a 2003 crash left 10 dead and 63 hurt, after an 87-year-old man's car accidentally roared through the market.