In a basketball card from 1990 of New York Knicks guard Mark Jackson, you can see the brothers in the background sitting ...

Erik and Lyle Menendez were featured in courtside seats photobombing a 1990 trading card of New York Knicks' Mark Jackson ...

The discovery of their presence on the card sparked significant interest among collectors and true crime aficionados.

An old NBA basketball card is becoming a big hit with collectors thanks to a pair of courtside spectators featured on it.

An old NBA basketball card is becoming a big hit with collectors thanks to a pair of courtside spectators featured on it. Erik and Lyle Menendez, the infamous brothers ... for the value of the ...

A 1990 basketball card of former NBA star Mark Jackson, which was photo-bombed by Erik and Lyle Menendez, skyrocketed in value following the infamous brothers' 1996 conviction in their parents ...