James and Jennifer Crumbley, the first parents of a US school shooter to be convicted, appeared together for the first time in months at Tuesday's sentencing hearing.

In December, a judge sentenced Crumbley to life in prison without the possibility of parole. His mother, Jennifer Crumbley, was found guilty of involuntary manslaughter on Tuesday, marking the first time a parent has been convicted of such charges for their child's role in a mass shooting.