Can astrology predict death?

This weekend someone tragically died in my family.  I went to look at their chart and nothing was travelling through the 8th house of death or impacting if by other aspects.  However, I looked at progressions and this person had 4 planets in the 8th house by progression (venus, sun, mars, mercury), as well as progressed chiron return.  However, looking at these factors may only be myths.

• Having a 8th hse progressed Sun means: "You are searching for some meaning in your life right now. All areas of your life are subject to this scrutiny, but particularly your significant partnerships, either personal or business. It is also possible that you join groups or begin studies that help you understanding the deeper meaning of life. The spiritual side of life may draw your attention. "
• Having an 8th house progressed Venus means: "Obsession, pain and loss are common experiences when Venus is operating through the 8th House"
• Having an 8th house progress Mars means: "When Mars is operating through the 8th House a person's will is eroded to a greater or lesser degree by the conflict between head and the heart. In this process his emotional and sexual needs will frustrate the efforts he considers he should be making in order to move his life on."

It may be easier to view the indicators of death from grieving loved one's charts:

"According to Astrologers the potential for death can be gleaned from a chart and that certain markers can be identified which point to a life-threatening time. There is in fact historical evidence that ancient astrologers believed this to be the case. The Greeks who were extremely pragmatic regarding death actually had a whole chapter of the Tetrabiblos dedicated to calculating "The Length of Life". There are modern astrologers however who will argue that death leaves no markers in the native's chart because death is a non-traumatic transition --like walking across a threshold -- and that therefore it can better be detected through a loved-one's chart as a grieving period ."  source

Mars is currently transiting my 8th house.  And the Sun and Saturn are both squared my 8th house. 

My progressed moon is in the 8th also:
"You become more aware of hidden facets of yourself- especially ones that need attention. You notice where you sabotage yourself. Issues between yourself and others, especially ones involving money and /or power come to a head, requiring confrontation to transform. "

My mother, who is also grieving, has Pluto and Chiron progressed in her 8th.

By the way, most astrologers will not do a chart to predict someone's death.