MILWAUKEE (AP) _ Relatives of a teen-age boy sexually assaulted by Jeffrey L. Dahmer in 1988 say they fear the boy's missing brother may be connected to the discovery of dismembered bodies at Dahmer's apartment.

Dahmer, 31, was being held on suspicion of homicide. Police said Wednesday they had recovered part or all of 11 men's bodies at Dahmer's apartment and were investigating the possibility that there may be other victims.

Dahmer was convicted in 1989 of sexually assaulting a 13-year-old boy who he lured to his apartment by offering him $50 to pose for a picture, according to court records.

That boy, now 16, told the Milwaukee Sentinel in an interview published Wednesday that he watched television reports Tuesday about the discovery of bodies at Dahmer's apartment but felt no emotion.

''I don't feel anything,'' the boy said. ''I don't think about it. I don't want to talk about it.''

Relatives of the boy said the family is worried because the boy's 14-year- old brother has been missing since May 26.

''A friend heard about (the body parts) on the radio and told me about it,'' a 25-year-old brother of the two boys told the newspaper. ''All of a sudden I thought I didn't want my brother to be one of them.''

The older brother said his parents were worried sick about the missing 14- year-old. Another family member said police told her Tuesday they had no immediate information to tie the missing boy to Dahmer's apartment, the newspaper said.

Even if the missing boy is not part of the case, relatives said news of Dahmer's arrest opened old wounds for a family that came to Milwaukee in 1980 after fleeing Laos.

The newspaper said the family was angry Dahmer had been sentenced to just one year in jail with work release privileges after being convicted of second- degree sexual assault and enticing a minor for immoral purposes in the Sept. 26, 1988, assault on the boy.

Dahmer was released from jail in March 1990 after serving about 10 months in jail and was still on probation when police discovered the bodies at his apartment.

''They let him get away,'' an older brother told the newspaper.