Complex sentence: Armed with an old shotgun Chris, Laura, and Jerri go out in search of aid, but are ambushed by Ricky, who stabs Chris in the chest while Laura and Jerri run back to the house, just as Newbury finds Ricky.
Split into simpler sentences: Armed with an old shotgun Chris, Laura, and Jerri go out in search of aid, but are ambushed by Ricky, who stabs Chris in the chest. While Laura and Jerri run back to the house, Newbury finds Ricky.