Hi and welcome to the forum wanderingbear , from a fellow UK'er. This was a terrible shock and shatters our sense that the world is a safe place , and particularly for you who assists a person also going about their business and doing a job. Coupled with the other events in your life , I would urge you to seek specialised trauma treatment as soon as possible. I hope you will find us supportive and understanding here too , and will reach out whenever you need.