Story here
Sadly three babies have died in this particular type of sling.
I have to admit I've never liked that type of sling, they are not very adjustable and the baby is hanging too far down and not close enough to the mother's chest. Also the material is far too thick. It's more akin to carrying a baby in a bag rather then a traditional sling.
Unfortunately though this will give baby carrying a bad name although I am sure that there are many more babies who sadly die in prams then in slings.