Police stand at the scene in Allen, Texas, on Monday, where six people were found fatally shot in a home after police said two brothers made a plan to kill four family members and themselves. (Jason Janik/The Dallas Morning News via AP)Police stand at the scene in Allen, Texas, on Monday, where six people were found fatally shot in a home after police said two brothers made a plan to kill four family members and themselves. (Jason Janik/The Dallas Morning News via AP)