ST. PETERSBURG — A woman faces a second-degree murder charge after police say she fatally shot her live-in boyfriend after a dispute at their home on Thursday night.

St. Petersburg police arrested Megan Lewis, 47, on a charge of second-degree murder in the death of her boyfriend, Craig Cutson, 52.

Investigators determined they were involved in a domestic argument at their home at 125 17th Ave. SE, around 9:15 p.m.

The dispute resulted in Lewis shooting Cutson, police said.

Cutson was taken to Bayfront Health St. Petersburg, where he died, police said.

This is a developing story. Stay with tampabay.com for updates.