i need advice concerning my brothers personal items

as some of you know my brother took his life 3 days ago , ill also provide a small update on life but it’ll just be brief , we’re having the funeral on saturday but right now my mother , sister and aunt are laughing right now in the living room as im writing this so it’s good that they’re able to get their mind off of it. anyways the question and this might be super messed up but idek , we got back my brothers personal belongings and my mother wanted me to have my brothers chain and as i was looking at it , i noticed some of the blood is still on it and i don’t know if this is one of those moments where im supposed to keep it there and leave it untouched and just keep it somewhere safe or if i should wash it and wear it as a keepsake from my brother (i always let him borrow my necklaces so this in a way would be a way to remember him by) im also getting a tattoo soon to remember him by because he was a big tattoo guy and me and him were going to go and get one together before he passed. like I absolutely know the right answer is to wash the necklace but I’ve seen some people leave their belongings untouched and I don’t know if wearing it will trigger my family.