Obtained by Daily News
Miguel Duval (left) is accused of fatally pushing his mother, Vianel Garcia, down an embankment in Riverside Park in Manhattan last month. (Obtained by Daily News) 
The brutal death of Vianel Garcia, allegedly at the hands of her son, is part of an alarming trend. In the past year, there have been at least six cases of adult children killing their parents with some indication a psychiatric illness may have played a role.
