Ex-NFL star Aaron Hernandez was 'on edge ' and aggressive at a Boston nightclub two nights before prosecutors say he killed another football player , a witness told jurors at his murder trial on Thursday . Kasey Arma , who danced with the former New England Patriots tight end at Rumor nightclub early on June 15 , 2013 , said he initially seemed relaxed , but later appeared irritated , grabbing her and telling her to dance with him in another part of the club . 'He just seemed a lot more agitated , on edge , ' she said . 'He was just very aggressive . ' Testimony : Kasey Arma ( pictured in court on Thursday ) who danced with Hernandez at Rumor nightclub in Boston early on June 15 , 2013 - two days before the alleged murder - said she thought he was agitated . 'On edge ' : She described how the former New England Patriots tight end initially seemed relaxed , but later appeared irritated , grabbing her and telling her to dance with him in another part of the club . Hernandez , 25 , is on trial at Bristol County Superior Court in Fall River , Massachusetts , for fatally shooting Odin Lloyd , a semi-professional football player who was dating his fiancée 's sister , early on June 17 , 2013 . If convicted , he faces a maximum penalty of life in prison without parole . Prosecutors say Hernandez became upset with Lloyd at the club that night for associating with people he disliked . Lloyd had gone to the club with Hernandez and his barber , Roberto Olivares , according to prosecutors . An acquaintance of Lloyd 's who was also at the club , Kwami Nicholas , testified earlier this week that Hernandez stared for several minutes at Lloyd and another man , and appeared angry before storming out of the club , with Lloyd running to catch up . Arma , who had seen Hernandez at the club several times before , said Hernandez initially tapped her on the hip to get her attention . She said she danced with Hernandez , who introduced himself as 'Rock , ' for several minutes before he abruptly walked away . Distressing : Ursula Ward , mother of murder victim Odin Lloyd , puts her hand on her face as an image of her son 's body is displayed on a monitor during the murder trial . Scene : Hernandez watches as an image of the ground near where victim Odin Lloyd 's body was found is displayed on a monitor during . He later returned and 'grabbed me by my arm and pulled me out of the crowd and told me to go with him , ' Arma said , adding they then danced in another part of the club . Also on Thursday , prosecutors showed surveillance video recorded at Hernandez 's house in North Attleborough , Massachusetts , hours after Lloyd 's death . It showed Hernandez and two alleged accomplices , Ernest Wallace and Carlos Ortiz , in different parts of the house , at times playing with Hernandez 's baby daughter and swimming in his pool . Prosecutors say Hernandez , Wallace and Ortiz picked up Lloyd at Lloyd 's Boston house early on June 17 , 2013 , and drove him to an industrial park near Hernandez 's house where his bullet-riddled body was later found . Wallace and Ortiz have also been charged with murder and will be tried separately . All have pleaded not guilty . Evidence : Assistant District Attorney William McCauley displays a sneaker during to the court .
Kasey Arma told court she met him at Rumor nightclub on June 15 , 2013 . Described how New England Patriots tight end first appeared relaxed . She said he later appeared irritated and grabbed her and moved her . Prosecutors say Hernandez was upset with Odin Lloyd that night . Claims the victim was dancing with people he did n't like . Hernandez , 25 , has denied killing Lloyd at an industrial park .