A Nashville man shot and killed another and then killed himself outside a Nashville home just west of the airport this afternoon, Metro Nashville police said.

Sonny Coulter, 47, shot and killed Ethan Love, 29, outside of Coulter's home in the 1000 block of Harold Drive, MNPD reported Thursday evening.

Authorities do not know why Love was at Coulter's home, but reported Love was in a relationship with a woman who has children with Coulter. The two men were involved in a recent dispute, according to police, and Coulter allegedly threatened Love with a shovel on a previous date.

Police responded to the residence at about 2 p.m. Thursday afternoon after a neighbor called 911. Coulter texted the neighbor to say that he killed someone, according to MNPD.

Coulter's ex-girlfriend, who has not been identified by police, also alerted authorities after Coulter called her Thursday afternoon. She reported he video called her to tell her about the shooting and said that "he was not going to prison," according to police.

Coulter died shortly after police arrived at the home.

If you are in crisis, please call the National Suicide Prevention Lifeline at 1-800-273-TALK (8255), or contact the Crisis Text Line by texting TALK to 741741. The lines are open 24 hours a day, every day.

This story is ongoing, check back for updates.

Reach Mariah Timms at mtimms@tennessean.com or 615-259-8344 and on Twitter @MariahTimms.