A 25-year-old man who police say had a "contentious" relationship with his parents is in police custody after allegedly fatally shooting his mom, dad, brother and his brother's girlfriend with a semi-automatic rifle at the family's home in Livonia before surrendering to police. Photos by David Guralnick, The Detroit News, Max Reinhart, The Detroit News, Clarence Tabb Jr., The Detroit News, More updates at the link in bio. #DetroitNews #Livonia