Relatives and friends say that Cybulski wasn't suffering from a fatal illness.
He had business and personal plans, including marrying his longtime girlfriend and was going to attend a friend's wedding in New York in the fall.
When detectives searched Cybulski's home computer, they found extensive research on cancers, leukemia, poisons and assisted suicide.
They also found an online document titled, "Will I go to hell if I kill myself."
