My brother fell from the upstairs. Can he be reincarnated?

Accidental death, all because of the heavy karma in the previous life, is very short.

As for whether he can be reincarnated, reincarnation is certain. The six divisions in the wheel of karma, involuntarily, must be in The six great divisions in the wheel of karma according to karma, but it's hard to say where he will be reincarnated. If he didn't do any good deeds and didn't believe in Buddhism before his death, then his chances of reincarnation as an adult are generally very small, and the chances of reincarnation in the three evil ways are even greater. That is, Beast Road, Hungry Ghost Road and Hell Road.

According to the Tibetan scriptures, the deceased very much hope that their living relatives can do merits for them, that is, chanting Buddha and holding spells, supporting Buddha, bodhisattva and monk, and giving them merits will benefit them or free them from evil ways.