Brian Snyder, Pool, File, Associated Press
In this Oct. 9, 2013, file photo, former New England Patriots NFL football player Aaron Hernandez attends a pretrial court hearing in Fall River, Mass. A prosecutor has told jurors that the former New England Patriots player orchestrated the killing of a semiprofessional football player, then orchestrated a cover-up.

FALL RIVER, Mass. — A prosecutor has told jurors that former New England Patriots player Aaron Hernandez orchestrated the killing of a semiprofessional football player, then orchestrated a cover-up.

In opening statements Thursday, Bristol County Assistant District Attorney Roger Bomberg took jurors through the sequence of events that led to Odin Lloyd's death.

He played video surveillance that prosecutors say showed Lloyd getting into a car driven by Hernandez shortly before his killing, then video taken at Hernandez's home shortly after the killing without Lloyd in the car.

He showed them an image taken off Hernandez's video surveillance system that showed Hernandez standing outside his basement, holding what Bomberg said was a gun.

Hernandez has pleaded not guilty to killing Lloyd in 2013. Lloyd was dating the sister of Hernandez's fiancee, Shayanna Jenkins.