So, you say you cannot tell what you know... but do you actually know something material that is not in the public domain, and the rest of us and LE does not know?
So you say "I cannot comment on the status of the investigation." Well, neither can I, because I don't know what the status of the investigation is.
"Play or don't" Play what...?
What about Thomas A. Trlica? Here's an observation. The guy was married 4 times in 7 years between 1971 and 1978. That seems unusual. To start things off, he married a 16 year old girl in 1971. He then divorced his first wife on April 26, 1974, just 6 weeks prior to marrying another 16 year old girl; Rachel Arnold. Supposedly he dated Rachel Arnolds older sister Debra, and was "sort-of" engaged to her before he married her younger sister Rachel on June 8, 1974. I wonder if he called off the sort-of engagement to the 19 year old Debra Arnold because she was too old. He must have been very busy going to work, taking care of his two year old son from his first marriage, all while he was romancing the two Arnold sisters back-to-back during the very brief window between his first and second marriage. Then later, his former girlfriend Debra Arnold (his current wife Rachel's older sister) came to live with him and his new wife (Rachel). Seriously, you cant make this stuff up.
Then, 23 months after his second wife Rachel went missing, in 1976 he married for the third time; this time to a seventeen year old girl. Maybe he knew Rachel was never coming back.
He divorced his third wife in June of 1978. Two months later he then married his fourth wife in August, 1978.