Guy on Twitter claimed that cops are currently at shooters house:

https://twitter.com/realaustinzone/status/1640428500732526600

He started a live stream:

https://www.youtube.com/watch?v=LpTezSRy61k

I found the address of where the shooter supposedly lived:

3003 Brightwood Ave, Nashville TN. If it's not this house, it's one of the adjacent. It's hard to tell which house the cops are at from the stream.

https://www.google.com/maps/place/3003+Brightwood+Ave,+Nashville,+TN+37212/@36.1195521,-86.7992629,3a,75y,314.83h,90t/data=!3m7!1e1!3m5!1sOLB4aO34ujMWGeYUCXIPog!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DOLB4aO34ujMWGeYUCXIPog%26cb_client%3Dsearch.gws-prod.gps%26w%3D86%26h%3D86%26yaw%3D314.83047%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192!4m7!3m6!1s0x8864643dab60380d:0xa9b7c33ee88331bf!8m2!3d36.1197721!4d-86.799529!10e5!16s%2Fg%2F11t6sdnjhn

That's what I've got so far.