Family members tell us Mark Samuel received a threatening phone call, shortly before being gunned down outside his home on Stewart last night at about 10:00 pm.
Cousin Christopher Moore says the loss has been incredible, and that many will miss the popular Detroit tattoo shop owner known for his sense of humor.
The 38-year-old murder victim also had 2 young girls, and was known for his generosity in helping others.
Police in Warren are asking the public for help in tracking down those responsible.
The motive remains unknown. Witnesses are urged to call Warren police right away.
A GoFundMe account has been started to raise money for funeral expenses.