Please check my sentences gramatically (7.18)

I helped my boss by moving his father's coffin to tomb.
I hope, when he comes back, he feels relief and better than now.

If I go to mug festival, enjoying with mug puts hot weather out of my head.
There are tons of pictures that many foreigners were taken during festival.
You can see their happy smile through the pictures.

There were a lot of people who were secrificed by the coup.

President repressed the coup.
I think sacifice will increase, because president revenge against army involving in the coup.
I couldn't imagine that coup would happen until now.
I've thought coup is just old fashioned event, not reality.

The newspaper is helpful to come up with my knowledge.

When I have no time on my hands, I avoid doing anything except for my work.

Sad story has a great effect on my daily life, for example when I work at the office, meet someone and so on.