victims of the marathon bombings. this ice sculpture unveiled monday night near the finish line. it will be unveiled at dusk. security will be tight across the city with up to a million people also expected to take part in those celebrations. now this isn t a scene from the mel gibson movie signs. this is actual footage of giant crop circles that appeared on this farm near the central california coast. two friends driving on a nearby sunday night said they witnessed strange bursts of light flashing on the horizon. they videotaped that, posted it on youtube, bringing curious onlookers. no one has yet come forward to admit they are behind it. we re going to get to the bottom of this. i see lawnmower tracks. the truth is out there. anna, thank you so much. coming up next on new day,