This morning at 0915 we had a page for MVA semi vs car. I knew that it was going to be ugly, dispatch had advised 1 pt trapped and it was on a stretch of road where traffic travels at 55+. Opon arrival found .. ALS unit was there before me.......they where calling the pt.........I know this car it belongs to a very close friends 22 year old son........I lift the sheet and confirm my horror.......I could not do it...... I turned IC to my captain to complete the extrication. Once I thought I was… Continue