Bush doctor was shot while cycling by another cyclist who later killed himself.
https://www.digitaljournal.com/news/world/bush-doctor-s-killer-commits-suicide-us-police/article/528698
Queen and HWB - both Doctor's killed - Coincidence?
https://www.dailymail.co.uk/news/article-6066711/Doctor-Queen-died-cycling-hit-lorry.html
https://www.foxnews.com/us/2018/08/02/suspect-in-murder-george-h-w-bushs-former-doctor-apparently-tried-to-sell-guns-online-days-after-slaying-report.html
What would nail it is if the Lorry Driver commits suicide like the Cyclist who shot Bush Doctor did:
https://www.digitaljournal.com/news/world/bush-doctor-s-killer-commits-suicide-us-police/article/528698