I'm so sorry for your loss. My Dad worked with Mark at the Weapon Station and we are saddened to hear of his passing.
Our thoughts and prayers are with his family.
My condolences to the Senyk family. I know this is a difficult time and I pray God comforts the family during this time of bereavement. May the many cherished and loving memories of Mark comfort his family and friends. A comforting thought to keep in mind is at Revelation 21:4 "And he (GOD) will wipe out every tear from their eyes, and death will be no more, neither will mourning nor outcry nor pain will be anymore. The former things have passed away." May you all have calming thoughts and peace of mind during this time.
Please accept my sympathy and condolences to the whole family. Mark and I were coworkers at the Naval Weapons Station for years. He will be remembered and missed.