Al-hamdu lillah (praise be to Allah). Life insurance is among the most severely prohibited types of insurance if not the single worst one. It is no doubt a type of gambling, and thus working in this field of employment is haram (prohibited), and it is forbidden to be a partner in helping people towards sin and enmity.
While taking into consideration the situation of this brother and the difficulty and distress that he has fallen into, I can but say: (translation of the meaning from surat al-Talaaq:2-3)
“And for those who fear Allah, He (ever) prepares for him a way out. And He provides for him from (sources) he could never expect” (65:2-3)