A Mountain Grove truck driver has been sentenced to probation on involuntary manslaughter charges. Adam Housley will also be required to complete 500 hours community service and continue to get mental health treatment. Housley pleaded guilty to involuntary manslaughter in the deaths of Leo Walker and Tisha Biggs. Housley was originally charged with murder. Witness say he never hit his brakes when he slammed into the back of a pickup that Walker and Biggs were in. Housley allegedly told authorities that god told him to do it.