https://www.poweroflove.org/openaid-home He is a cardiologist that has a foundation called Power of Love that Power of Love programs empower women caregivers by teaching them how to break the cycle of poverty and ill-health via the following multi-pronged approach:

Train women to care for their HIV infected children and orphaned nephews/nieces, Provide business training and micro loans to women to start a business, Provide food, medicines, and a package of life-saving healthcare services to HIV+ children, and Provide long lasting insecticide treated nets and education on malaria prevention to children and families vulnerable to malaria.

This smells to me. What did he know, who did he know, why was he killed?