Jerry Pournelle at NASFiC in 2005. Public domain photo by G.E. Rule.
If you follow science fiction news, you likely have heard by now about the death of Jerry Pournelle, who died Sept. 8, age 84.
Pournelle was arguably best known for his collaborations with Larry Niven, which earned Hugo nominations for The Mote in God’s Eye, Inferno, Lucifer’s Hammer and Footfall. He won the Prometheus Award in 1992 for Fallen Angels, a collaboration with Larry Niven and Michael Flynn, and the Prometheus Hall of Fame Award in 2001 for The Survival of Freedom, an anthology he co-edited with John F. Carr.
You can read a tribute to Pournelle from Sarah Hoyt, herself a Prometheus Award winner (for her novel Darkship Thieves.)
There is also a useful Wikipedia entry.
See also the Science Fiction Encylopedia article.