after the shooting Mark has 4 children, 2 with Lexie and 2 with Callie, Arizona has 2 children with Callie, Owen and Cristina have 2 children, Meredith and Derek have 2 children, Alex has 2 children, Jackson and April have 2 children, Bailey has her son and 1 child with Ben, Teddy and Henry have 2 children, and Webber has 2 children.