革命博物館
There are several versions of how Monterrosa was killed. One is that a malfunctioning helicopter crashed and killed its occupants including Col. Monterrosa. Another version states that an FMLN booby trap was set under a fake rebel radio transmitter that Monterrosa took with him as a victory trophy, in 1984. The bomb went off while he was in flight. Remnants of his helicopter can be found in the Museum of the Revolution in Perquin, Morazan department.