A preliminary autopsy report obtained by KVUE News Monday for the death of a Texas State Fraternity member fails to answer one key question: How did he die?

The information comes two weeks after Matthew Ellis, a sophomore business student, was found dead at an off-campus apartment.

The preliminary autopsy report by the Travis County Medical Examiner's Office shows that the cause of death is pending the results of a toxicology test.

Medical examiners told KVUE and Austin American-Statesman Reporter Tony Plohetski once they have that evidence they can also determine Ellis' manner of death. For example, that could be natural causes, accidental or even homicide.

The information usually takes about a month to compile -- sometimes longer.

Meanwhile, the Texas Alcoholic Beverage Commission said Monday that they also need toxicology results before they can move forward with any investigation into how Ellis got alcohol.

San Marcos police are still investigating too, and they have already said they do believe alcohol was a factor.

Ellis was found dead Nov. 13 at an off-campus apartment. He is thought to have been at a fraternity party.

That fraternity, Phi Kappa Psi, was already under investigation when Ellis died. The university says they weren't supposed to be having any social events at the time.

Now, the university has suspended all Greek activities.