| Mon Dec 31 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Ohio | 3 | 2 | 5 | A dispute began at a rented Airbnb during a New Year's Eve party. Three men were killed and another man and woman were wounded. |
| Sat Dec 29 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Ohio | 1 | 3 | 4 | One person was killed and three people were wounded in a shooting at an afterhours club. |
| Fri Dec 28 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Missouri | 4 | 1 | 5 | A gunman shot and killed his girlfriend, her two children, and her mother. He was arrested after exchanging fire with police and attempting to carjack a vehicle. |
| Mon Dec 24 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Louisiana | 2 | 2 | 4 | Three people were killed and two others were wounded in a shooting outside of a bar. |
| Sun Dec 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Missouri | | 7 | 7 | Seven people were wounded during a shooting at a holiday party. |
| Sat Dec 22 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Nevada | | 4 | 4 | Four people were wounded during a shooting at a holiday party. |
| Tue Dec 18 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Maryland | | 5 | 5 | Five people were injured in a shooting outside a deli. |
| Sat Dec 15 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Florida | | 5 | 5 | Five people were wounded in a shooting. |
| Fri Dec 14 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Colorado | 1 | 3 | 4 | One person was killed and three others were injured in a shooting near the Colorado Springs Airport. |
| Thu Dec 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) | Pennsylvania | | 4 | 4 | Four men were injured in a shooting that occurred inside a barbershop. The suspect evaded police but the weapon was recovered. |