Lindstrom was a businessman operating on Babylon 5.
He sometimes dealt in Dust. One such time was in 2260, when he was approached by Citizen G'Kar. G'Kar wanted to use the Dust in the fight against the Centauri and as such Lindstrom left G'Kar with a sample, warning him that the effect on Narns would be unpredictable.
Lindstrom was later caught and arrested making an exchange with his contacts from the drug lab for the shipment of Dust intended for G'Kar.