Jeffrey Nickelson founded Shadow Theatre Company on a $500 gift in 1997, kept it going on a shoestring, moved it into a fine new home in Aurora two years ago, resigned abruptly last summer and, shortly thereafter, died of a heart attack. Since then, the company has dissolved in a welter of accusation and counter-accusation. Nickelson may never have been able to achieve the stability he wanted for Shadow, but that shouldn't distract Denverites from his profound accomplishments: his passion for black history and desire to teach through theater, his efforts to reach out and heal division, and, above all, the evenings of revelation, drama, heart-stirring music and sheer lighthearted comedy that Shadow provided for so many years.