His car hit a hole that contained a mine and his daughter and wife died
Question

                I am a doctor from Iraq. I took my wife and my only daughter to visit her family, and on our way back we were in my car, and I hit a hole containing a mine which caused the car to roll over and I lost consciousness because of bleeding in the brain. As for my daughter, they said that she died less than one hour after the accident, and my wife died approximately 10 hours afterwards, as they say. I hope that you can explain to me the following matters: 

1. Am I regarded as having killed my wife and daughter?

2. What are the consequences for me of this matter and what is my situation with regard to inheritance?.
Praise be to Allah.
    Firstly: 

    We ask Allaah to reward you for your calamity and to 
    compensate you with something better; and we ask Him to purify the land of 
    Iraq -- and all the Muslim lands -- of sinful aggressors and to grant 
    victory to His close friends and to humiliate His enemies, for He is able to 
    do that. 

    Secondly: 

    If you were driving at a speed at which you were able to 
    control the car and you were not able to avoid this hole, then there is no 
    blame on you because you were not negligent, and you do not have to offer 
    expiation or pay blood money. 

    But if you were driving at excessive speed, at which you 
    could not control the car, then you have to offer two counts of blood money 
    and two expiations for accidental killing of your wife and daughter, because 
    you made a mistake and caused their death.  

    The main issue is whether or not you were negligent, and 
    negligence may mean excessive speed, not paying attention to the state of 
    your brakes and tires, staying up too late and not sleeping, and other 
    things that may have been the cause of the accident. 

    Shaykh Ibn ‘Uthaymeen (may Allaah have mercy on him) said in 
    his essay Ahkaam Hawaadith al-Sayyaaraat: If the driver of the car 
    does something intending to escape danger, for example if he is faced with 
    something that he fears will harm him in a crash, or someone comes out from 
    the right or the left in such a way that he cannot stop, so he swerves to 
    avoid danger and an accident occurs, or he suddenly sees a deep hole in 
    front of him and he swerves to avoid it and an accident occurs -- in these 
    cases there are no consequences such as requiring expiation or compensation, 
    because he acted responsibly and did what was required of him of trying to 
    avoid danger, so he is in the right  and “No ground (of complaint) can 
    there be against the Muhsinoon (good-doers)” [al-Tawbah 9:91]. 

    Thirdly: 

    If there was negligence, then the one who was negligent is 
    obliged to do two things: to pay blood money and offer expiation for each 
    one who died. But if the heirs waive the blood money, he is no longer 
    obliged to pay it; as for expiation, it cannot be waived. 

    The heirs do not have the right to waive the blood money if 
    the slain person owed debts or if he has heirs who are minors; rather his 
    debts should be paid from the blood money. An heir who is an adult of sound 
    mind may give up his share of the blood money if he wishes, but for the 
    minors their share remains due. See: al-Sharh al-Mumti’ (11/321): 

    The expiation for killing is freeing a slave; if that is not 
    possible then it is to fast two consecutive months, because Allaah says 
    (interpretation of the meaning): “and whosoever kills a believer by 
    mistake, (it is ordained that) he must set free a believing slave and a 
    compensation (blood money, i.e. Diya) be given to the deceased’s family 
    unless they remit it.” Then He says:  “And whoso finds this (the penance of freeing a slave) beyond his means, he must fast for two consecutive months in order to seek repentance from Allaah” [al-Nisa’ 4:92].