Giving ghusl to a shaheed

Q: If a person is murdered during a hijacking (shot and died immediately), should he be given ghusal or will he not be given ghusal as a shaheed? 

Our books say he is a shaheed and should not be given ghusal but in our societies, we normally give him a ghusal. Are we making a mistake?

Using a continuous glucose monitor

Q: I am, as per blood results and my doctor, on the brink of Type 2 diabetes. One of the options to try and reverse this is to use a continuous glucose monitor. What is the position with this in terms of ghusl? 

The patch is kept on for 14 days at a time and then changed. Please advise what is the position in terms of ghusl as if we are required to remove this in ghusl then it cannot work as each patch costs almost R1500 per 2 weeks.