Police in Rio de Janeiro state, which hosts next month's Olympics, killed at least 645 people last year and 8,000 over the last decade, a rights group said Thursday. The grisly toll includes dozens of execution-style killings in addition to the lethal violence used during standard police work in the state, the report from Human Rights Watch said. The international rights group identified 64 cases in the last eight years in which Rio police allegedly tried to cover up extrajudicial killings of 116 people, including at least 24 minors.
