Whitney Houston's cause of death is not yet known, though reports indicate it may be ruled an accident, however, her family believes they have the answer: she was murdered.

The 'I'm Your Baby Tonight' singer, who died Feb. 11 at the age of 48, was apparently killed, according to her family members. The Los Angeles County Coroner's Office revealed that Houston's family claim she was murdered and they are demanding an investigation take place.

TMZ reports that calls have been flooding the coroner's office with requests that the songstress' death be investigated as a murder. The calls, in addition to emails, are allegedly from people who claim to be Houston's relatives and those related to her ex-husband Bobby Brown.

Wednesday (March 7) news broke that Houston's will was revealed. The singer left her 19-year-old daughter Bobbi Kristina an estate valued at close to $20 million.

Watch 'Whitney Houston's Family Demands Murder Investigation'

#fivemin-widget-blogsmith-image-569373{display:none;} .cke_show_borders #fivemin-widget-blogsmith-image-569373, #postcontentcontainer #fivemin-widget-blogsmith-image-569373{width:476px;height:357px;display:block;}
Whitney Houston's Family Demands Murder Investigation:

See Whitney Houston Funeral Photos

%VIRTUAL-MultiGallery-147977|147130|145290|144210%

Watch Whitney Houston's 'I Wanna Dance With Somebody' Video