Details of Disappearance
Gianni, his brother Joseph Jr., and their parents, Summer and Joseph Sr., disappeared from Fallbrook, California on February 4, 2010. In November 2013, four sets of skeletal remains, of two adults and two children, were found in two shallow graves in a remote area in the Mojave Desert near Victorville, California.
The adults have been identified as Joseph Sr. and Summer; authorities haven't officially identified the children's remains but believe they are Joseph Jr. and Gianni. Their deaths are under investigation.