Berry, this is really unfortunate and quite sad
May I ask what is the state of Sun in your natal horoscope?
In the first chart I see a very powerful aspect of Mars square Saturn, along with mars Pluto contact it's the strongest aspect connected to violence. It is often found in charts of both victims and murderers, if you'd believe it.
Also Sun(self) is combined with Uranus(sudden) squared from Neptune that is normally associated with 12th house, this is a very stressed Sun, and one needs to account for Sun when looking at potential for longevity as it represents life force. Sun here has fallen under effect of two transsaturns that are usually unpredictable and negative in influence.
But since there is no accurate birth time no way to see the houses and discuss more.
In second chart again Sun is stressed, there is above mentioned Mars Pluto square, and it involves the sun, and Venus ruler of 8th house and first house(physical body) is in exact square from Uranus, sudden event which we have no control over. Usually when Uranus is combined with 8th house or it's ruler, the death of native is sudden and unexpected.
For cases like these, there is no need to look for similar aspects, but you need to know how to delineate charts in regarding to this. Once you've written their fates one can easily pinpoint what led to these, further with solars/progressions more evidence of it can certainly be found. Yet no everyone with endangered sun, mars pluto saturn aspects becomes a victim. What I see as similar in both charts is simply the fact that Sun has no way out, no easy aspect to relieve the situation only hard aspect that make the events only go the bad way.