Oil of Joy for Mourning

Isaiah 61:1
“The Spirit of the Lord GOD is upon Me,
Because the LORD has anointed Me
To preach good tidings to the poor;
He has sent Me to heal the brokenhearted,
To proclaim liberty to the captives,
And the opening of the prison to those who are bound;
2 To proclaim the acceptable year of the LORD,
And the day of vengeance of our God;
To comfort all who mourn,
3 To console those who mourn in Zion,
To give them beauty for ashes,
The oil of joy for mourning,
The garment of praise for the spirit of heaviness;
That they may be called trees of righteousness,
The planting of the LORD, that He may be glorified.”

This prayer goes out to my friends and their family, who just found out that their mother/ex-wife just committed murder/suicide this morning. She was a friend of mine. We had some differences and hadn't talked for over a year, but I am still heart broken.
Lord, please comfort their family right now during this horrific time. I pray that You give them the peace that passes understanding that can only come from You. Jesus we call out to You, please answer their questions by Your precious Holy Spirit and give them joy for mourning.