Thrill killing — you have it in the city, you have it in the country. Fairly rare, but disgusting in all forms.
I believe that todays computer shoot-em-down games that are so prevalent with the new generation could cause some to take the next step to thrill killing. After all, it might get boring shooting at a screen when there is a big world out there.
If these degenerates are caught, they should get at least 2 years for each offence,to run consecutively.