Custom version of UntitledParser which can detect the tick you die on, for easily timing Death% runs. Should be accurate on both Unpack and Steampipe, though not as extensively tested on the latter.
For now this is a custom build, at one point this functionality will likely be added to a proper release.

To use, simply drag a demo onto the .exe, it'll tell you the tick that RumbleStopAll happens on, which indicates the tick you died. Take this tick number and increment it by 1, this is your final time in ticks. Every tick is 0.015s, so to convert from ticks to seconds just multiply by 0.015.
Keep in mind that for 00/01 the starting time is different, indicated by the first number in the brackets in the Adjusted ticks line. For the example run below, the final time would be 85+1 - 30 = 56 ticks, or 0.840s.