The Mark of the Spider - Black Orchid Chronicles, #1

Sebastian Arnett doesn't believe in spirits, but one believes in him. While photographing rare orchids in the highland jungles of Borneo, Sebastian encounters an old Dyak woman who presents him with a black orchid. But the gift comes with a curse - the power to kill with his thoughts - and a disfiguring tattoo of a spider web that covers half his face. Sebastian soon learns that he cannot conceal the tattoo or control his lethal new power.
When he accidentally kills the commander of a secret U. S. special operations group, members of the command seek revenge. Sebastian goes on the run to save himself and the woman he loves. The Mark of the Spider is Book 1 of the Black Orchid Chronicles.