In 1982 he awarded the IM. His father was the famous ralley-driver Jean-Claude Andruet.

Gilles Andruet was found dead near Paris in a plastic bag. He was trashed to death. The reason may have been his passion of playing (for money?). It is said, the he could often be found in playing clubs.

"Meurtre de Gilles Andruet, échec et mat"

TV reportage (in French, 2008):

Part 1: http://www.dailymotion.com/video/x6...

Part 2: http://www.dailymotion.com/boola-p/...

< White is threatening 26.Qe6 mate. There is no adequate defense so Andruet resigned. However, Seret wrote 26.Qe6 mate on his scoresheet and when they exchanged scoresheets for signing, Andruet drew a line through the move. When the scoresheet was handed back to Seret he punched Andruet in the face and drew blood. The men were separated and a "supervisory commission" met and decided to punish Seret after the tournament. The decision left Andruet furious and he produced a medical certificate and withdrew from the tournament. The commission's decision seems lenient, but it probably had something to do with the fact that Seret's reputation at the board had always been above reproach while the same thing could not be said of Andruet.>

What they should have said is this:

<The men were separated and a "supervisory commission", <instead of expelling Seret from the tournament immediately,> decided to punish Seret after the tournament.>

Given that both Andruet and Lamford were strong players who would have been familiar names to British chess fans in 1982, it does seem strange that the alleged three rooks vs two rooks endgame is not in any databases or any contemporary magazines that I've seen. The claim has been removed from wikipedia for lack of sourcing.