TODAY | February 15, 2012
>> reporter: new reports about whitney houston 's erratic final days including an emotional outburst in the hotel gift shop and the investigation may be taking a new turn as well. the l.a. times says police are focusing on the pill bottles found in her room and the doctors who prescribed them. they are the final images of whitney houston , just 48 hours before her death. looking dishevelled, witnesses say, and out of it. that day people magazine reports whitney was in the gift shop of the beverly hilton and saw herself on the cover of a tabloid. she reportedly cursed and yelled, what is wrong with these people? when did i collapse? by saturday she was dead in the bathtub. whitney 's daughter bobbi bobbi kristina was screaming, what's wrong with her? investigators are trying to figure that out tracing whitney 's prescription pill bolts back to the doctors and pharmacies though they say there was not an unusual amount in the room.
>> if someone were to take a variety of drugs and alcohol, it can stop them from breathing and it can stop their heart and lead to a heart attack .
>> reporter: while the toxicology report and official cause of death are still weeks away, whitney 's public battle with addiction now front and center. in hollywood --
>> a terrible loss. i hate this disease.
>> what disease do you speak of?
>> alcoholism and drug addiction .
>> i can't speak knowledgeably that she passed from that.
>> i know she's had problems with her demons as i have myself. she lost.
>> reporter: on cable news --
>> the hard truth is some people will always want to destroy themselves and there is nothing society can do about it.
>> reporter: though the white house drug czar weighed in calling whitney 's death a teachable moment.
>> there is a moment the country can reflect upon recognizing that prescription drugs can be powerful, addictive and quite dangerous.
>> reporter: as whitney houston 's casket arrived in new jersey, so did her family. mother cissy and cousin dionne warwick . the funeral scheduled for saturday in newark at the new hope baptist church . the same church where she began her career singing in the choir as a teenager.
>> reporter: it will be private. invitation only. no public memorial.
>> they had shared her for 30-some years with the city, with the state, with the world. this is their time now for their farewell to their daughter, mother.
>> reporter: the family was said to be considering a public tribute at a large arena in new jersey but decided against it. fans will be able to watch saturday's funeral on tv. one camera will be allowed into the church, matt.