Opinion by
The defendant was indicted on charges of burglary, robbery and other related offenses arising from the *95 same set of circumstances. Leonard J. Fitzgerald, a co-defendant pleaded guilty to all of the charges. Towber whose defense was an alibi, was found guilty as indicted and was sentenced.
Shortly after two o’clock in the early morning of October 26, 1957, two masked men, one of them with a sawed-off shotgun, entered the Birmingham Grille, a diner at Painter’s Crossroads in Delaware County. The gun was discharged into the roof of the structure and eight or ten customers together with the employes who were on duty were herded into a corner of the diner. The men in the group were made to surrender their wallets, and the women, their handbags. The cash register was rifled. The two holdup men made their escape in a 1957 Chevrolet which had been stolen some hours before from a parking lot near a steel mill in Coatesville. A witness, who had driven up to the diner while the holdup was in progress, realized what was going on and was instrumental in notifying the police. Police officers observed the get-away car as it was driven through West Chester and followed it. They were eluded however and never caught up with the car which was later abandoned at the side of a country road, several miles from Coatesville. It was suspected that Fitzgerald had a part in the crimes and he was arrested in Coatesville about 4:30 of the same morning. At the State Police barracks immediately following his arrest, Fitzgerald admitted his part in the crime as the accomplice of appellant Wasyl Towber. He said that it was Towber who suggested that they “pull a job”, when he met him by chance early in the evening before, in Coatesville where they both lived; that Towber then had the shotgun under his coat and he also had a rubber mask; that after stealing the Chevrolet car they proceeded to the diner, with Towber driving and arrived there about 2 a.m.; that Towber purposely dis *96 charged the gun and it was he who robbed the people who were in the diner, while Fitzgerald, at Towber’s direction, rifled the cash register; that they divided the stolen money between them in a vacant building known as Old Mansion and there abandoned the stolen car; that they separated as they were walking along toward Coatesville.
Because both of the men were masked, the victims who appeared as witnesses, were unable to identify the robbers but their testimony as to general physical characteristics fitted both defendants. Towber was arrested later in the same morning and was taken to the police barracks. There, according to the testimony, Fitzgerald’s confession was read in the presence of both Fitzgerald and Towber; all three of the State Police officers who also were pre’sent at the reading of the confession testified that Towber did not deny the implication of guilt but stood mute and refused to say anything. Towber at the trial denied that he refused comment when Fitzgerald’s confession, charging him as an accomplice, was read in his presence. He testified: “I asked to plead the 5th Amendment to the Constitution because I didn’t know what everything was about, I didn’t know What to say.” The officers’ testimony was that the claim of immunity under “the 5th amendment” did not come until at least two hour’s later. The trial court submitted the testimony of Towber’s standing mute and refusing to answer as evidence of his guilt, under
Com. v. Vallone,
A new trial must be granted for additional reasons. The competency of Fitzgerald as a witness who had a criminal record, was not in question but since he was Towber’s self-confessed accomplice, impeachment of Fitzgerald’s credibility was vital to Towber’s defense. It was contended that Fitzgerald had suffered from a psychopathic mental disorder which had a bearing on Ms credibility as a witness; and that the court erred in refusing to admit evidence of Fitzgerald’s commitment for mental treatment. In the record there is a reference to hospital psycMatric treatment of Fitzgerald in 1954; and the record of the PennsylvaMa Hospital offered in evidence, and refused over objection, shows his commitment for treatment in December 1956 and Ms release (but not before March 31, 1957), only about 7 months before the date the crimes were committed and the date when the confession of Fitzgerald implicating Towber was made. The general rule as stated in
Commonwealth v. Kosh,
Finally, defendant Towber was further seriously prejudiced in the eyes of the jury by the Commonwealth’s rebuttal testimony. After defendant had testified that he was beaten at the State Police barracks and that he had refused to answer questions for that reason, Sergeant Urella was called by the Commonwealth in rebuttal. His testimony that defendant was
not
mistreated and that he
did
answer questions was proper rebuttal. But he was then permitted, over defendant’s objection, and motion for the withdrawal of a juror, to relate what defendant then said, including (in answer to a specific question by the assistant district attorney) that the defendant had “knocked up” a certain girl in Coatesville. As was recently pointed out by us in
Commonwealth v.
Steinberg,
*100 Judgment of sentence reversed and a new trial ordered.
