Michael Jackson's son Blanket has recently released a web cartoon series which many found disturbing and inappropriate for his age. Even the grandmother of the child is starting to get worried with the theme of the animated series.

According to the London Daily Star, Michael Jackson's son created a series involving a "nameless boy who witnesses his father's murder and 12 years later, begins a one-man crusade to kill the people responsible."

While such theme appears to be ordinary with current media, it is quite unusual for an 11-year-old like Blanket to come up with the story. Therapists are claiming that the cartoon might be an expression of the anger Michael Jackson's son is feeling with regards to his father's death.

"He clearly harbours the belief that someone should be made to pay for his father's demise, even though Dr. Conrad Murray has served his jail time," claims psychiatrist Dr. Carl Nelson who thinks that the child might need a therapy.

Cardiologist Conrad Murray served 2 years in jail after being convicted for giving Jackson a lethal dosage of the anesthetic propofol while preparing for his comeback concert series 'This Is It' in June 2009.

Katherine Jackson, Blanket's grandmother, claims that she isn't aware that her grandson created such work. She likewise does not have an idea as to who provided monetary support for the creation and distribution of the cartoon.

"This has caught her completely off guard. She's very shaken by the theme. This is a side of Blanket she never suspected was there," claims one source. Blanket has two older siblings, Paris and Michael.