Chris Davidson Posted September 10, 2019 Author Share Posted September 10, 2019 And, since they started 5.75" down from the collartop and eventually tried to move it back up 3.54"(5.75-3.54) = 2.21" this difference through a 7" torso equals 20.65°(17.52+3.13) and would have lessened the overall rise/run of 13.54"/36" to a rise/run of 11.33"/36" which = (17.47+3.13)= 20.60°. Both landing between the CE884 span of approx z217.5(shot #1 determination via SS/FBI- Dec1963 plat) and CE884 z222. Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 10, 2019 Author Share Posted September 10, 2019 4 hours ago, Chris Davidson said: And, since they started 5.75" down from the collartop and eventually tried to move it back up 3.54"(5.75-3.54) = 2.21" this difference through a 7" torso equals 20.65°(17.52+3.13) and would have lessened the overall rise/run of 13.54"/36" to a rise/run of 11.33"/36" which = (17.47+3.13)= 20.60°. Both landing between the CE884 span of approx z217.5(shot #1 determination via SS/FBI- Dec1963 plat) and CE884 z222. In regards to the HSCA 9ft rise integration approx match, the overall rise/run looks like this (imo): 13.54”rise/36”run = 20.61° + 3.13° = 23.74° overall reduced by a rise of 2.21” = 20.60° In essence, a 2.21” rise/run reduction, eliminates the 3.13° Elm St slope in an equation where the location was 9ft above the 6th floor window sill connected to the chalk mark @ 3.27ft above the street, essentially creating the same matching angle of 20.6° Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 11, 2019 Author Share Posted September 11, 2019 On 9/10/2019 at 10:11 AM, Chris Davidson said: And, since they started 5.75" down from the collartop and eventually tried to move it back up 3.54"(5.75-3.54) = 2.21" this difference through a 7" torso equals 20.65°(17.52+3.13) The cumulative affect resulting in a recreation reflecting the intersecting point approx 2.21" below the collartop: Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 12, 2019 Author Share Posted September 12, 2019 On 8/29/2019 at 8:28 AM, Chris Davidson said: 1" = 10ft Base measurement match: See previous post. The LOS from elev. 423.07 = Shot #1 labeled on the SS/FBI Dec-1963 plat. Richard Sprague used z226 back to the Dal-Tex building as his LOS, I just shortened it to elev 423.07(approx z218) and ran his LOS back to the Dal-Tex. It intersects approx 30ft from the Dal-Tex corner. Extending the Sprague Dal-Tex shooter location: The 4 red boxes consist of: 1. Photo depiction 2. LOS crossing JFK's path at approx z152 3. PositionA 4. Sprague's shooter Link to comment Share on other sites More sharing options...
David Josephs Posted September 12, 2019 Share Posted September 12, 2019 (edited) I've always thought the shooter was in the 3rd floor window, not second. Chris - can you prove the shot originated higher than lower? 30 feet over, how high up on DalTex? (sorry if I missed you posting that already) Edited September 12, 2019 by David Josephs Link to comment Share on other sites More sharing options...
David Josephs Posted September 12, 2019 Share Posted September 12, 2019 Another Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 12, 2019 Author Share Posted September 12, 2019 On 8/29/2019 at 7:36 AM, Chris Davidson said: Height and angle. Distance next. On 8/29/2019 at 9:08 AM, Chris Davidson said: Elev. of Dal-Tex building base = 430.8ft (430.2 + .3 (SniperNest to TSBD Corner) + .3 (TSBD Corner to Dal-Tex) 2nd floor window sill = 20ft = (approx height of the TSBD 2nd floor) Elev 450.8 - 423.07(shot#1-SS/FBI Dec-1963 plat) = 27.73ft - 3.27ft(CE884 elev difference) = 24.46ft. David, Building up from the 2nd to 3rd floor @ 3.27ft above ground from elev 423.07(shot#1-SS/FBI Dec-1963 plat) According to Drommer , the DalTex 6th floor ledge was 10.5ft higher than the TSBD 6th floor ledge. Four floors from the 2nd to the 6th floor = 10.5ft/4 = (2.625ft per floor + 10ft per floor + 24.46 = 37.085ft) The same base distance (as the 2nd floor) is necessary so a match from the DalTex 3rd floor window ledge would look like this: Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 12, 2019 Author Share Posted September 12, 2019 5 hours ago, David Josephs said: Chris - can you prove the shot originated higher than lower? 30 feet over, how high up on DalTex? (sorry if I missed you posting that already) Height? No. The back and throat wounds didn't completely traverse JFK's body. Location, I believe so. Official story- Compound angle problems. Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 16, 2019 Author Share Posted September 16, 2019 (edited) On 9/12/2019 at 4:51 PM, Chris Davidson said: Height? No. That said, ballistically, a logical scenario for a missed (over the limo top) DalTex shot around extant z152 (imo) would probably transpire this way: Slant distance to grass of approx 439ft. Slant distance to JFK in limo at z152 approx 179ft. DalTex platform approx 4ft above sidewalk. Gun barrel slightly above the platform (angled at approx 1.11° .53°) is approx 4.5ft above the DalTex platform (Red X's) which is approx 8.5 above the DalTex street height. 179/439 = .4 x 8.5ft = 3.46ft 8.5ft - 3.46ft = 5.04ft x 12" = 60" Top of JFK's head = 52.78" Limo top = 57" Limo descends 1.7ft(extant z film-1.08ft per frame) in the time it takes a bullet fired at 2160ft per sec to reach its first 179ft mark. JFK hears gun shot and reacts with head turn (not as fast as in the extant zfilm) but a reaction, none the less. Shooter miscalculated slightly, the limo's declination and overshoots target. Edits in Bold Addition to graphic reflects new angle aimed at JFK's head. Shooter sitting or lying on the platform. Edited September 16, 2019 by Chris Davidson Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 16, 2019 Author Share Posted September 16, 2019 Extant zfilm with missing frames added via Groden version. Human reaction to an external stimuli = approx 5 zframes. JFK head turn. Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 17, 2019 Author Share Posted September 17, 2019 23 hours ago, Chris Davidson said: That said, ballistically, a logical scenario for a missed (over the limo top) DalTex shot around extant z152 (imo) would probably transpire this way: Slant distance to grass of approx 439ft. Slant distance to JFK in limo at z152 approx 179ft. DalTex platform approx 4ft above sidewalk. Gun barrel slightly above the platform (angled at approx 1.11° .53°) is approx 4.5ft above the DalTex platform (Red X's) which is approx 8.5 above the DalTex street height. 179/439 = .4 x 8.5ft = 3.46ft 8.5ft - 3.46ft = 5.04ft x 12" = 60" Top of JFK's head = 52.78" Limo top = 57" Limo descends 1.7ft(extant z film-1.08ft per frame) in the time it takes a bullet fired at 2160ft per sec to reach its first 179ft mark. JFK hears gun shot and reacts with head turn (not as fast as in the extant zfilm) but a reaction, none the less. Shooter miscalculated slightly, the limo's declination and overshoots target. Edits in Bold Addition to graphic reflects new angle aimed at JFK's head. Shooter sitting or lying on the platform. Too much activity over by the DalTex bottom floor windows. If they are slider windows, the openings reside at the same elevation as the platform previously mentioned. Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 17, 2019 Author Share Posted September 17, 2019 (edited) Altgen's z255 LOS was fairly close. His photo(inset) would be approx 5.5sec after z152. Look behind Ladybird/driver/Yarborough for an opening in the crowd. It would have to come from the windows directly above the cycle cop within the inset. Does it lead back to one of those bottom floor windows? Edited September 18, 2019 by Chris Davidson Link to comment Share on other sites More sharing options...
David Josephs Posted September 17, 2019 Share Posted September 17, 2019 Chris.... Top of the VAN on Elm east of Houston? Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 17, 2019 Author Share Posted September 17, 2019 One more analogy. CE560 utilized a lead height of .56ft = 6.7". This was supposed to be from the 6th floor snipers nest using a slant distance of 175ft. You can compare that lead height to what I previously provided: 40 minutes ago, Chris Davidson said: 179ft/439 = .4 x 8.5ft = 3.46ft 8.5ft - 3.46ft = 5.04ft x 12" = 60" Top of JFK's head = 52.78" The difference being 60"- 52.78" = 7.22" Fairly close leads, just two different locations. Personally, I believe the DalTex building housed multiple shooters on different floors. Link to comment Share on other sites More sharing options...
Chris Davidson Posted September 18, 2019 Author Share Posted September 18, 2019 23 hours ago, Chris Davidson said: Altgen's z255 LOS was fairly close. His photo(inset) would be approx 5.5sec after z152. Look behind Ladybird/driver/Yarborough for an opening in the crowd. It would have to come from the windows directly above the cycle cop within the inset. Does it lead back to one of those bottom floor windows? Similar (check LOS in previous Sprague plat) to this view: Link to comment Share on other sites More sharing options...
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