Let's take a look at what Jeremy says his dad said to him, in that very brief one sided conversation, so short that there wasn't enough time for Jeremy to give any verbal response, before the line was disconnected for whatever reason:-
Possible interpretations of what was said (phonetically)
(1) - 'Jeremy, Sheila has got the gun, she has gone crazy, come Quickly'...
(2) - 'Jeremy, she has got the gun, she has gone crazy, come Quickly'..
(3) - 'Jeremy, he has got the gun, he has gone crazy, come Quickly'..
(4) - 'Jeremy, he has got the gun, Sheila's gone crazy, come Quickly'..
(5) - 'Jeremy, he has got the gun, she has gone crazy, come Quickly'...
(6) - 'Jeremy, she's got the gun, she's gone crazy, come Quickly'..
(7) - 'Jeremy, he's got the gun, he's gone crazy, come Quickly'..
(8) - 'Jeremy, he has got the gun, he's gone crazy, come Quickly'..
(9) - 'Jeremy, he's got the gun, he has gone crazy, come Quickly'...
(10) - ' Jeremy, she has got the gun, she has gone crazy, come Quickly'..
(11) - 'Jeremy, Sheila has got the gun, she's gone crazy, come Quickly'...