Lawrence White, the son of the dead architect, was the first witness. Thaw again fastened his eyes on the table before him and did not once look at the witness.
Young White said he was 19 years old and a student at Harvard university. His mother, he said, was then living at Cambridge, Mass.
White was on the stand only a few minutes. He told of accompanying his father to the Cafe Martin for dinner, and said that when he left him to go with his chum, a boy named King, to the New York roof garden, it was the last time he saw his father alive.
Myer Cohen, a song writer and manager of the house which published the music of "Mam'zelle Champagne," was called after an elevator man had detailed Thaw's conversation when arrested.
Mr. Cohen was on the Madison Square Roof garden the night of the tragedy. He saw Thaw there for the first time during the initial act of the musical comedy. Cohen described on a diagram the position of the table at which White sat.
When asked by Mr. Garvan to indicate Thaw's manner of approaching the architect that evening, the witness left the stand, and, walking up and down before the jury box, he illustrated the slow pace which he declared characterized Thaw's deliberation in approaching his victim.
"He walked up to Mr. White's table like this," said the witness, indicating. "He made a slight detour,