Dayton James Webber -- the quadruple amputee professional cornhole player suspected of fatally shooting another man in his car -- sounds like he's going to argue he was acting in self-defense.

Webber's attorneys telegraphed their defense strategy Wednesday during a bond hearing in Maryland, telling the judge the murder case against Webber was "a clear-cut case of self-defense."

One of the defense lawyers said Webber was "terrified of being killed" and "knew that he had to shoot or be killed." They said he didn't plan to kill the victim, Bradrick Wells, and made a split-second decision to pull the trigger.

Webber's attorneys and the prosecution also brought up a 2024 altercation between Webber and Wells ... where Webber allegedly told Wells to leave his property and fired a gun. Prosecutors claim Webber shot in Wells' direction, and the defense says Webber fired the gun in the air.

Ultimately, a judge denied Webber's bond ... citing the fact he was apprehended in Virginia after allegedly shooting Wells in Maryland.

As you know ... authorities claim Webber fatally shot Wells in his Tesla with two people in the back seat. Webber allegedly dumped the body and fled across state lines.