NRXN1 and epilepsy: Deletions of NRXN1 and the 15q11.2 deletion syndrome are also associated with seizures.[106] To be clear, we were not aware of a history of epilepsy or seizures antecedent to death in our SUDP cases with these findings, but together they raise the question of whether seizure‐related mechanisms may have played a role in death, as has been supported by prior evidence from other cases.[107]