Missing Brindle Dog in Port Orange Area

Does not do well other animals. He is a male brindle, Treeing Tennessee dog. People regularly think he is pit or pit mix. My daughter-in-law left for work at approximately 11:30 and my son came in for lunch at approximately 10 after 12 this afternoon and left about 12:40pm. I was busy, so I honestly don’t know an exact time within that timeframe. He went missing.