Giant-Size Defenders#4(1975)

When Kyle Richmond and Trish Starr are the victims of a car bomb, the two are admitted to a hospital in critical condition. Both the Defenders and Yellowjacket (knowing Starr personally) seek out their attackers. Thinking it was his old foe, Egghead, who is also Trish's uncle, Yellowjacket tracks him down and attacks him. He discovers that the down-on-his-luck Egghead blamed his niece for his misfortunes and, while not wanting to kill her, wanted to maim her in order to teach her a lesson. The Defenders, not realizing that Yellowjacket had already tracked down the man responsible, try to locate those behind the attack on their teammate. The Defenders somehow learn that the Squadron Sinister had returned from their last defeat, and mistakenly believe that they had attacked their former teammate, Richmond, who (as Nighthawk) was a member of the Squadron Sinister. The Defenders are easily defeated and taken prisoner. With the help of Yellowjacket, however, they free themselves and defeat the Squadron. Both Kyle and Trish survive the attack, but Trish loses her left arm. Later, when they are released from the hospital, Trish decides to end her relationship with Kyle, finding his life of super-heroics too much to handle and not wanting him to feel that he has to stay with her out of pity.