5th/6th March 1945 - Luftwaffe Nightfighter loss over Essex

This is my first question on here, so apologies if it seems a bit crass.
I am currently investigating a plane crash in Essex, where an Arado 234 had to crash land or was shot down. What is particularly interesting about this incident is it was completely 'covered up' by the British army, as it was an unusual 'jet' aircraft of the Second World War.
To date, I have established the pilot/navigator names - One is definitely Maj. Hans Leickhardt; who doesn't like being called Major. The other is Rolf Bussman, but this one I am only 95 % sure about.
The plane hit the ground on 5th or 6th March 1945. The area where this happened has slight evidence of the incident and interestingly....no one, including local historians, know about this incident.
I was contacting various people and historians in the area and have drawn a blank. Except one person, a local councillor, who said that no planes have crashed in this particular place. But she went on to say that there are numerous V type bomb reports in the area.
I have not been able to contact her in the last few days, as I want to establish from her if the V bomb reports pertain to the area I know about.
If so, then my theory that the plane incident was 'dressed up' as a V type bomb impact may be true. This councillor has comprehensive information on virtually all the bomb impacts and WWII activity in this particular town.
In the interim, I was hoping that some members out there may know info to confirm my stuff, or even add some critical info.....All will be most welcome.

Stuff I know: Impact on 5th or 6th March 1945.

Pilots/Navigators : Major Hans Leickhardt and Rolf Bussman.

Status of pilots after crash: Bussman - Deceased on impact.... Leickhardt - Seriously injured and possibly shot by British Army personnel then taken to location around 15 miles away for interogation and finally suicide.