Final answer:
The usual signs of impending disaster when it comes to rampage shootings include high levels of background violence, dysfunctional families, chaotic schools, and distracted adults too busy to pay attention to local teens.
Step-by-step explanation:
The Newman authors identified all of the above factors as the usual signs of impending disaster when it comes to rampage shootings. These factors include high levels of background violence, dysfunctional families, chaotic schools, and distracted adults too busy with their own lives to pay attention to the local teens. The authors argue that these factors contribute to the development of severe mental health problems in young people, leading to acts of violence.